31520541341 has 2 divisors, whose sum is σ = 31520541342. Its totient is φ = 31520541340.

The previous prime is 31520541257. The next prime is 31520541361. The reversal of 31520541341 is 14314502513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31277337316 + 243204025 = 176854^2 + 15595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31520541341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31520541361) 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, 15760270670 + 15760270671.

It is an arithmetic number, because the mean of its divisors is an integer number (15760270671).

Almost surely, 2^31520541341 is an apocalyptic number.

It is an amenable number.

31520541341 is a deficient number, since it is larger than the sum of its proper divisors (1).

31520541341 is an equidigital number, since it uses as much as digits as its factorization.

31520541341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 31520541341 in words is "thirty-one billion, five hundred twenty million, five hundred forty-one thousand, three hundred forty-one".