20031131022110 has 64 divisors (see below), whose sum is σ = 41810511960000. Its totient is φ = 6843060774912.

The previous prime is 20031131022109. The next prime is 20031131022137. The reversal of 20031131022110 is 1122013113002.

It is a super-2 number, since 2×20031131022110² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76681985 + ... + 76942764.

It is an arithmetic number, because the mean of its divisors is an integer number (653289249375).

Almost surely, 2^{20031131022110} is an apocalyptic number.

20031131022110 is an abundant number, since it is smaller than the sum of its proper divisors (21779380937890).

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

20031131022110 is a wasteful number, since it uses less digits than its factorization.

20031131022110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153624845.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20031131022110 its reverse (1122013113002), we get a palindrome (21153144135112).

The spelling of 20031131022110 in words is "twenty trillion, thirty-one billion, one hundred thirty-one million, twenty-two thousand, one hundred ten".