20122113031 has 16 divisors (see below), whose sum is σ = 20708835840. Its totient is φ = 19541088000.

The previous prime is 20122112999. The next prime is 20122113049. The reversal of 20122113031 is 13031122102.

It is a cyclic number.

It is not a de Polignac number, because 20122113031 - 2⁵ = 20122112999 is a prime.

It is a super-2 number, since 2×20122113031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20122112996 and 20122113014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122113071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7758871 + ... + 7761463.

It is an arithmetic number, because the mean of its divisors is an integer number (1294302240).

Almost surely, 2^20122113031 is an apocalyptic number.

20122113031 is a deficient number, since it is larger than the sum of its proper divisors (586722809).

20122113031 is a wasteful number, since it uses less digits than its factorization.

20122113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20122113031 its reverse (13031122102), we get a palindrome (33153235133).

The spelling of 20122113031 in words is "twenty billion, one hundred twenty-two million, one hundred thirteen thousand, thirty-one".