20112013031031 has 48 divisors (see below), whose sum is σ = 29874271789440. Its totient is φ = 13032155635200.

The previous prime is 20112013030957. The next prime is 20112013031039. The reversal of 20112013031031 is 13013031021102.

20112013031031 is a `hidden beast` number, since 201 + 1 + 20 + 130 + 310 + 3 + 1 = 666.

It is not a de Polignac number, because 20112013031031 - 2¹³ = 20112013022839 is a prime.

It is a super-2 number, since 2×20112013031031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20112013030995 and 20112013031013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112013031039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35332981 + ... + 35897681.

It is an arithmetic number, because the mean of its divisors is an integer number (622380662280).

Almost surely, 2^{20112013031031} is an apocalyptic number.

20112013031031 is a deficient number, since it is larger than the sum of its proper divisors (9762258758409).

20112013031031 is a wasteful number, since it uses less digits than its factorization.

20112013031031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565336 (or 565333 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20112013031031 its reverse (13013031021102), we get a palindrome (33125044052133).

The spelling of 20112013031031 in words is "twenty trillion, one hundred twelve billion, thirteen million, thirty-one thousand, thirty-one".