31523342141 has 2 divisors, whose sum is σ = 31523342142. Its totient is φ = 31523342140.

The previous prime is 31523342119. The next prime is 31523342159. The reversal of 31523342141 is 14124332513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29179814041 + 2343528100 = 170821^2 + 48410^2 .

It is a cyclic number.

It is not a de Polignac number, because 31523342141 - 2²² = 31519147837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31523342941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15761671070 + 15761671071.

It is an arithmetic number, because the mean of its divisors is an integer number (15761671071).

Almost surely, 2^31523342141 is an apocalyptic number.

It is an amenable number.

31523342141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31523342141 is an equidigital number, since it uses as much as digits as its factorization.

31523342141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

Adding to 31523342141 its reverse (14124332513), we get a palindrome (45647674654).

The spelling of 31523342141 in words is "thirty-one billion, five hundred twenty-three million, three hundred forty-two thousand, one hundred forty-one".