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312123331230 = 23510404111041
BaseRepresentation
bin1001000101011000000…
…00000001001010011110
31002211122102010001201220
410202230000001022132
520103212033044410
6355215410114210
731356464353344
oct4425400011236
91084572101656
10312123331230
11110409535507
12505a957b966
13235826b5699
141116d2a5994
1581bbb92070
hex48ac00129e

312123331230 has 16 divisors (see below), whose sum is σ = 749095995024. Its totient is φ = 83232888320.

The previous prime is 312123331211. The next prime is 312123331259. The reversal of 312123331230 is 32133321213.

It is a super-2 number, since 2×3121233312302 (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312123331230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5202055491 + ... + 5202055550.

It is an arithmetic number, because the mean of its divisors is an integer number (46818499689).

Almost surely, 2312123331230 is an apocalyptic number.

312123331230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312123331230 is an abundant number, since it is smaller than the sum of its proper divisors (436972663794).

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

312123331230 is a wasteful number, since it uses less digits than its factorization.

312123331230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10404111051.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 312123331230 its reverse (32133321213), we get a palindrome (344256652443).

The spelling of 312123331230 in words is "three hundred twelve billion, one hundred twenty-three million, three hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 10404111041 20808222082 31212333123 52020555205 62424666246 104041110410 156061665615 312123331230