31142711229113 has 6 divisors (see below), whose sum is σ = 34231244574282. Its totient is φ = 28311555662720.

The previous prime is 31142711229083. The next prime is 31142711229137. The reversal of 31142711229113 is 31192211724113.

It can be written as a sum of positive squares in only one way, i.e., 29610542584249 + 1532168644864 = 5441557^2 + 1237808^2 .

It is not a de Polignac number, because 31142711229113 - 2²² = 31142707034809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31142711229193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128688889256 + ... + 128688889497.

It is an arithmetic number, because the mean of its divisors is an integer number (5705207429047).

Almost surely, 2^{31142711229113} is an apocalyptic number.

It is an amenable number.

31142711229113 is a deficient number, since it is larger than the sum of its proper divisors (3088533345169).

31142711229113 is a wasteful number, since it uses less digits than its factorization.

31142711229113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257377778775 (or 257377778764 counting only the distinct ones).

The product of its digits is 18144, while the sum is 38.

The spelling of 31142711229113 in words is "thirty-one trillion, one hundred forty-two billion, seven hundred eleven million, two hundred twenty-nine thousand, one hundred thirteen".