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123213014430 = 235111451257321
BaseRepresentation
bin111001011000000010…
…0010110010110011110
3102210000221000122200220
41302300010112112132
54004320012430210
6132334150302210
711621222225262
oct1626004262636
9383027018626
10123213014430
1148288597450
121ba67957966
13b807a6183c
145d6bd5c0a2
1533120c4c70
hex1cb011659e

123213014430 has 64 divisors (see below), whose sum is σ = 322817654016. Its totient is φ = 29849120000.

The previous prime is 123213014429. The next prime is 123213014447. The reversal of 123213014430 is 34410312321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123213014430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 350170 + ... + 607490.

It is an arithmetic number, because the mean of its divisors is an integer number (5044025844).

Almost surely, 2123213014430 is an apocalyptic number.

123213014430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123213014430 is an abundant number, since it is smaller than the sum of its proper divisors (199604639586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123213014430 is a wasteful number, since it uses less digits than its factorization.

123213014430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258793.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 123213014430 its reverse (34410312321), we get a palindrome (157623326751).

The spelling of 123213014430 in words is "one hundred twenty-three billion, two hundred thirteen million, fourteen thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 1451 2902 4353 7255 8706 14510 15961 21765 31922 43530 47883 79805 95766 159610 239415 257321 478830 514642 771963 1286605 1543926 2573210 2830531 3859815 5661062 7719630 8491593 14152655 16983186 28305310 42457965 84915930 373372771 746745542 1120118313 1866863855 2240236626 3733727710 4107100481 5600591565 8214200962 11201183130 12321301443 20535502405 24642602886 41071004810 61606507215 123213014430