123312101310 has 72 divisors (see below), whose sum is σ = 327578650776. Its totient is φ = 32183532000.

The previous prime is 123312101303. The next prime is 123312101327. The reversal of 123312101310 is 13101213321.

123312101310 is a `hidden beast` number, since 1 + 2 + 331 + 21 + 0 + 1 + 310 = 666.

It is a super-2 number, since 2×123312101310² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 111316 + ... + 508935.

It is an arithmetic number, because the mean of its divisors is an integer number (4549703483).

Almost surely, 2^123312101310 is an apocalyptic number.

123312101310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123312101310 is an abundant number, since it is smaller than the sum of its proper divisors (204266549466).

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

123312101310 is a wasteful number, since it uses less digits than its factorization.

123312101310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620358 (or 620308 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123312101310 its reverse (13101213321), we get a palindrome (136413314631).

The spelling of 123312101310 in words is "one hundred twenty-three billion, three hundred twelve million, one hundred one thousand, three hundred ten".