313808631541 has 2 divisors, whose sum is σ = 313808631542. Its totient is φ = 313808631540.

The previous prime is 313808631523. The next prime is 313808631553. The reversal of 313808631541 is 145136808313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229676728516 + 84131903025 = 479246^2 + 290055^2 .

It is a cyclic number.

It is not a de Polignac number, because 313808631541 - 2⁵ = 313808631509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313808671541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156904315770 + 156904315771.

It is an arithmetic number, because the mean of its divisors is an integer number (156904315771).

Almost surely, 2^313808631541 is an apocalyptic number.

It is an amenable number.

313808631541 is a deficient number, since it is larger than the sum of its proper divisors (1).

313808631541 is an equidigital number, since it uses as much as digits as its factorization.

313808631541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

It can be divided in two parts, 31380863 and 1541, that added together give a square (31382404 = 5602²).

The spelling of 313808631541 in words is "three hundred thirteen billion, eight hundred eight million, six hundred thirty-one thousand, five hundred forty-one".