20313231331032 has 96 divisors (see below), whose sum is σ = 55970103018960. Its totient is φ = 6653737440000.

The previous prime is 20313231331031. The next prime is 20313231331049. The reversal of 20313231331032 is 23013313231302.

20313231331032 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 3 + 2 + 313 + 310 + 32 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20313231330987 and 20313231331005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313231331031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2415682 + ... + 6816302.

Almost surely, 2^{20313231331032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20313231331032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27985051509480).

20313231331032 is an abundant number, since it is smaller than the sum of its proper divisors (35656871687928).

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

20313231331032 is a wasteful number, since it uses less digits than its factorization.

20313231331032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401745 (or 4401738 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 20313231331032 its reverse (23013313231302), we get a palindrome (43326544562334).

The spelling of 20313231331032 in words is "twenty trillion, three hundred thirteen billion, two hundred thirty-one million, three hundred thirty-one thousand, thirty-two".