31243613405361 has 32 divisors (see below), whose sum is σ = 47957555712000. Its totient is φ = 17723312101440.

The previous prime is 31243613405353. The next prime is 31243613405443. The reversal of 31243613405361 is 16350431634213.

It is not a de Polignac number, because 31243613405361 - 2³ = 31243613405353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31243613405311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6680610 + ... + 10349771.

It is an arithmetic number, because the mean of its divisors is an integer number (1498673616000).

Almost surely, 2^{31243613405361} is an apocalyptic number.

It is an amenable number.

31243613405361 is a deficient number, since it is larger than the sum of its proper divisors (16713942306639).

31243613405361 is a wasteful number, since it uses less digits than its factorization.

31243613405361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17031029.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 31243613405361 in words is "thirty-one trillion, two hundred forty-three billion, six hundred thirteen million, four hundred five thousand, three hundred sixty-one".