31343452051 has 2 divisors, whose sum is σ = 31343452052. Its totient is φ = 31343452050.

The previous prime is 31343452043. The next prime is 31343452067. The reversal of 31343452051 is 15025434313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31343452051 - 2³ = 31343452043 is a prime.

It is a super-2 number, since 2×31343452051² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31343452451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15671726025 + 15671726026.

It is an arithmetic number, because the mean of its divisors is an integer number (15671726026).

Almost surely, 2^31343452051 is an apocalyptic number.

31343452051 is a deficient number, since it is larger than the sum of its proper divisors (1).

31343452051 is an equidigital number, since it uses as much as digits as its factorization.

31343452051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 31343452051 its reverse (15025434313), we get a palindrome (46368886364).

The spelling of 31343452051 in words is "thirty-one billion, three hundred forty-three million, four hundred fifty-two thousand, fifty-one".