123311312132 has 24 divisors (see below), whose sum is σ = 229331773440. Its totient is φ = 57814715520.

The previous prime is 123311312107. The next prime is 123311312191. The reversal of 123311312132 is 231213113321.

It is a junction number, because it is equal to n+sod(n) for n = 123311312098 and 123311312107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3327332 + ... + 3364187.

It is an arithmetic number, because the mean of its divisors is an integer number (9555490560).

Almost surely, 2^123311312132 is an apocalyptic number.

It is an amenable number.

123311312132 is a deficient number, since it is larger than the sum of its proper divisors (106020461308).

123311312132 is a wasteful number, since it uses less digits than its factorization.

123311312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691811 (or 6691809 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

Adding to 123311312132 its reverse (231213113321), we get a palindrome (354524425453).

The spelling of 123311312132 in words is "one hundred twenty-three billion, three hundred eleven million, three hundred twelve thousand, one hundred thirty-two".