31323201123132 has 48 divisors (see below), whose sum is σ = 81285714468000. Its totient is φ = 10431113650560.

The previous prime is 31323201123107. The next prime is 31323201123133. The reversal of 31323201123132 is 23132110232313.

31323201123132 is a `hidden beast` number, since 3 + 1 + 3 + 232 + 0 + 112 + 313 + 2 = 666.

It is a super-2 number, since 2×31323201123132² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 31323201123096 and 31323201123105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323201123133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138127719 + ... + 138354302.

It is an arithmetic number, because the mean of its divisors is an integer number (1693452384750).

Almost surely, 2^{31323201123132} is an apocalyptic number.

It is an amenable number.

31323201123132 is an abundant number, since it is smaller than the sum of its proper divisors (49962513344868).

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

31323201123132 is a wasteful number, since it uses less digits than its factorization.

31323201123132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276483083 (or 276483075 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 31323201123132 its reverse (23132110232313), we get a palindrome (54455311355445).

The spelling of 31323201123132 in words is "thirty-one trillion, three hundred twenty-three billion, two hundred one million, one hundred twenty-three thousand, one hundred thirty-two".