31542411113 has 2 divisors, whose sum is σ = 31542411114. Its totient is φ = 31542411112.

The previous prime is 31542411107. The next prime is 31542411139. The reversal of 31542411113 is 31111424513.

It is an a-pointer prime, because the next prime (31542411139) can be obtained adding 31542411113 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24695179609 + 6847231504 = 157147^2 + 82748^2 .

It is a cyclic number.

It is not a de Polignac number, because 31542411113 - 2¹⁴ = 31542394729 is a prime.

It is not a weakly prime, because it can be changed into another prime (31542419113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15771205556 + 15771205557.

It is an arithmetic number, because the mean of its divisors is an integer number (15771205557).

Almost surely, 2^31542411113 is an apocalyptic number.

It is an amenable number.

31542411113 is a deficient number, since it is larger than the sum of its proper divisors (1).

31542411113 is an equidigital number, since it uses as much as digits as its factorization.

31542411113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

Adding to 31542411113 its reverse (31111424513), we get a palindrome (62653835626).

The spelling of 31542411113 in words is "thirty-one billion, five hundred forty-two million, four hundred eleven thousand, one hundred thirteen".