31151334023 has 2 divisors, whose sum is σ = 31151334024. Its totient is φ = 31151334022.

The previous prime is 31151334001. The next prime is 31151334091. The reversal of 31151334023 is 32043315113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31151334023 - 2¹⁸ = 31151071879 is a prime.

It is a super-2 number, since 2×31151334023² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 31151333983 and 31151334001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31151394023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15575667011 + 15575667012.

It is an arithmetic number, because the mean of its divisors is an integer number (15575667012).

Almost surely, 2^31151334023 is an apocalyptic number.

31151334023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31151334023 is an equidigital number, since it uses as much as digits as its factorization.

31151334023 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 26.

Adding to 31151334023 its reverse (32043315113), we get a palindrome (63194649136).

The spelling of 31151334023 in words is "thirty-one billion, one hundred fifty-one million, three hundred thirty-four thousand, twenty-three".