20331031113032 has 8 divisors (see below), whose sum is σ = 38120683336950. Its totient is φ = 10165515556512.

The previous prime is 20331031113011. The next prime is 20331031113079. The reversal of 20331031113032 is 23031113013302.

It can be written as a sum of positive squares in only one way, i.e., 14126577829156 + 6204453283876 = 3758534^2 + 2490874^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×20331031113032² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20331031112989 and 20331031113007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270689444557 + ... + 1270689444572.

Almost surely, 2^{20331031113032} is an apocalyptic number.

It is an amenable number.

20331031113032 is a deficient number, since it is larger than the sum of its proper divisors (17789652223918).

20331031113032 is a wasteful number, since it uses less digits than its factorization.

20331031113032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541378889135 (or 2541378889131 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 20331031113032 its reverse (23031113013302), we get a palindrome (43362144126334).

The spelling of 20331031113032 in words is "twenty trillion, three hundred thirty-one billion, thirty-one million, one hundred thirteen thousand, thirty-two".