31234240011011 has 2 divisors, whose sum is σ = 31234240011012. Its totient is φ = 31234240011010.

The previous prime is 31234240010993. The next prime is 31234240011043. The reversal of 31234240011011 is 11011004243213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31234240011011 - 2²⁶ = 31234172902147 is a prime.

It is not a weakly prime, because it can be changed into another prime (31234240011071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15617120005505 + 15617120005506.

It is an arithmetic number, because the mean of its divisors is an integer number (15617120005506).

Almost surely, 2^{31234240011011} is an apocalyptic number.

31234240011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31234240011011 is an equidigital number, since it uses as much as digits as its factorization.

31234240011011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 31234240011011 its reverse (11011004243213), we get a palindrome (42245244254224).

The spelling of 31234240011011 in words is "thirty-one trillion, two hundred thirty-four billion, two hundred forty million, eleven thousand, eleven".