20122311031 has 2 divisors, whose sum is σ = 20122311032. Its totient is φ = 20122311030.

The previous prime is 20122310849. The next prime is 20122311049. The reversal of 20122311031 is 13011322102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20122311031 - 2²⁷ = 19988093303 is a prime.

It is a super-2 number, since 2×20122311031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20122310996 and 20122311014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20122311331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061155515 + 10061155516.

It is an arithmetic number, because the mean of its divisors is an integer number (10061155516).

Almost surely, 2^20122311031 is an apocalyptic number.

20122311031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122311031 is an equidigital number, since it uses as much as digits as its factorization.

20122311031 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20122311031 its reverse (13011322102), we get a palindrome (33133633133).

The spelling of 20122311031 in words is "twenty billion, one hundred twenty-two million, three hundred eleven thousand, thirty-one".