20112102022031 has 2 divisors, whose sum is σ = 20112102022032. Its totient is φ = 20112102022030.

The previous prime is 20112102021997. The next prime is 20112102022079. The reversal of 20112102022031 is 13022020121102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20112102022031 - 2²² = 20112097827727 is a prime.

It is a super-2 number, since 2×20112102022031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112102022231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056051011015 + 10056051011016.

It is an arithmetic number, because the mean of its divisors is an integer number (10056051011016).

Almost surely, 2^{20112102022031} is an apocalyptic number.

20112102022031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112102022031 is an equidigital number, since it uses as much as digits as its factorization.

20112102022031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20112102022031 its reverse (13022020121102), we get a palindrome (33134122143133).

The spelling of 20112102022031 in words is "twenty trillion, one hundred twelve billion, one hundred two million, twenty-two thousand, thirty-one".