31323131310332 has 12 divisors (see below), whose sum is σ = 54815519848656. Its totient is φ = 15661554210720.

The previous prime is 31323131310329. The next prime is 31323131310451. The reversal of 31323131310332 is 23301313132313.

It is a super-2 number, since 2×31323131310332² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31323131310295 and 31323131310304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7332032 + ... + 10789112.

It is an arithmetic number, because the mean of its divisors is an integer number (4567959987388).

Almost surely, 2^{31323131310332} is an apocalyptic number.

It is an amenable number.

31323131310332 is a deficient number, since it is larger than the sum of its proper divisors (23492388538324).

31323131310332 is a wasteful number, since it uses less digits than its factorization.

31323131310332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722228 (or 5722226 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 31323131310332 its reverse (23301313132313), we get a palindrome (54624444442645).

The spelling of 31323131310332 in words is "thirty-one trillion, three hundred twenty-three billion, one hundred thirty-one million, three hundred ten thousand, three hundred thirty-two".