31132540441 has 2 divisors, whose sum is σ = 31132540442. Its totient is φ = 31132540440.

The previous prime is 31132540427. The next prime is 31132540451. The reversal of 31132540441 is 14404523113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17348841225 + 13783699216 = 131715^2 + 117404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31132540441 is a prime.

It is not a weakly prime, because it can be changed into another prime (31132540451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566270220 + 15566270221.

It is an arithmetic number, because the mean of its divisors is an integer number (15566270221).

Almost surely, 2^31132540441 is an apocalyptic number.

It is an amenable number.

31132540441 is a deficient number, since it is larger than the sum of its proper divisors (1).

31132540441 is an equidigital number, since it uses as much as digits as its factorization.

31132540441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 31132540441 in words is "thirty-one billion, one hundred thirty-two million, five hundred forty thousand, four hundred forty-one".