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123012401313254 = 2173711779747403
BaseRepresentation
bin11011111110000100001110…
…011110111011010111100110
3121010112212111202022022000212
4123332010032132323113212
5112110413344214011004
61113343041135335422
734624231656646415
oct3376041636732746
9533485452268025
10123012401313254
11362172a2684102
1211968764381572
1353840342a264b
142253b90dab47c
15e34c7c98c96e
hex6fe10e7bb5e6

123012401313254 has 16 divisors (see below), whose sum is σ = 195373183783248. Its totient is φ = 57888026956032.

The previous prime is 123012401313253. The next prime is 123012401313287. The reversal of 123012401313254 is 452313104210321.

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 123012401313254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012401313253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7746317 + ... + 17493719.

It is an arithmetic number, because the mean of its divisors is an integer number (12210823986453).

Almost surely, 2123012401313254 is an apocalyptic number.

123012401313254 is a deficient number, since it is larger than the sum of its proper divisors (72360782469994).

123012401313254 is a wasteful number, since it uses less digits than its factorization.

123012401313254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118599.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 123012401313254 its reverse (452313104210321), we get a palindrome (575325505523575).

The spelling of 123012401313254 in words is "one hundred twenty-three trillion, twelve billion, four hundred one million, three hundred thirteen thousand, two hundred fifty-four".

Divisors: 1 2 17 34 371177 742354 6310009 9747403 12620018 19494806 165705851 331411702 3618011803331 7236023606662 61506200656627 123012401313254