31233223051 has 2 divisors, whose sum is σ = 31233223052. Its totient is φ = 31233223050.

The previous prime is 31233223027. The next prime is 31233223069. The reversal of 31233223051 is 15032233213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31233223051 - 2²¹ = 31231125899 is a prime.

It is not a weakly prime, because it can be changed into another prime (31233224051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616611525 + 15616611526.

It is an arithmetic number, because the mean of its divisors is an integer number (15616611526).

Almost surely, 2^31233223051 is an apocalyptic number.

31233223051 is a deficient number, since it is larger than the sum of its proper divisors (1).

31233223051 is an equidigital number, since it uses as much as digits as its factorization.

31233223051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 31233223051 its reverse (15032233213), we get a palindrome (46265456264).

The spelling of 31233223051 in words is "thirty-one billion, two hundred thirty-three million, two hundred twenty-three thousand, fifty-one".