31662223037131 has 2 divisors, whose sum is σ = 31662223037132. Its totient is φ = 31662223037130.

The previous prime is 31662223037117. The next prime is 31662223037233. The reversal of 31662223037131 is 13173032226613.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31662223037131 is a prime.

It is a super-2 number, since 2×31662223037131² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31662223337131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15831111518565 + 15831111518566.

It is an arithmetic number, because the mean of its divisors is an integer number (15831111518566).

Almost surely, 2^{31662223037131} is an apocalyptic number.

31662223037131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31662223037131 is an equidigital number, since it uses as much as digits as its factorization.

31662223037131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 40.

The spelling of 31662223037131 in words is "thirty-one trillion, six hundred sixty-two billion, two hundred twenty-three million, thirty-seven thousand, one hundred thirty-one".