20212322131 has 2 divisors, whose sum is σ = 20212322132. Its totient is φ = 20212322130.

The previous prime is 20212322107. The next prime is 20212322173. The reversal of 20212322131 is 13122321202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20212322131 - 2²⁵ = 20178767699 is a prime.

It is a super-2 number, since 2×20212322131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20212322099 and 20212322108.

It is not a weakly prime, because it can be changed into another prime (20212322231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106161065 + 10106161066.

It is an arithmetic number, because the mean of its divisors is an integer number (10106161066).

Almost surely, 2^20212322131 is an apocalyptic number.

20212322131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212322131 is an equidigital number, since it uses as much as digits as its factorization.

20212322131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20212322131 its reverse (13122321202), we get a palindrome (33334643333).

The spelling of 20212322131 in words is "twenty billion, two hundred twelve million, three hundred twenty-two thousand, one hundred thirty-one".