31004234311 has 2 divisors, whose sum is σ = 31004234312. Its totient is φ = 31004234310.

The previous prime is 31004234299. The next prime is 31004234329. The reversal of 31004234311 is 11343240013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31004234311 - 2²⁵ = 30970679879 is a prime.

It is a super-2 number, since 2×31004234311² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31004238311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15502117155 + 15502117156.

It is an arithmetic number, because the mean of its divisors is an integer number (15502117156).

Almost surely, 2^31004234311 is an apocalyptic number.

31004234311 is a deficient number, since it is larger than the sum of its proper divisors (1).

31004234311 is an equidigital number, since it uses as much as digits as its factorization.

31004234311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31004234311 its reverse (11343240013), we get a palindrome (42347474324).

The spelling of 31004234311 in words is "thirty-one billion, four million, two hundred thirty-four thousand, three hundred eleven".