31134235511 has 2 divisors, whose sum is σ = 31134235512. Its totient is φ = 31134235510.

The previous prime is 31134235481. The next prime is 31134235603. The reversal of 31134235511 is 11553243113.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31134235511 is a prime.

It is a super-2 number, since 2×31134235511² (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 (31034235511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15567117755 + 15567117756.

It is an arithmetic number, because the mean of its divisors is an integer number (15567117756).

Almost surely, 2^31134235511 is an apocalyptic number.

31134235511 is a deficient number, since it is larger than the sum of its proper divisors (1).

31134235511 is an equidigital number, since it uses as much as digits as its factorization.

31134235511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

Adding to 31134235511 its reverse (11553243113), we get a palindrome (42687478624).

The spelling of 31134235511 in words is "thirty-one billion, one hundred thirty-four million, two hundred thirty-five thousand, five hundred eleven".