31198409584423 has 4 divisors (see below), whose sum is σ = 31199669285760. Its totient is φ = 31197149883088.

The previous prime is 31198409584417. The next prime is 31198409584427. The reversal of 31198409584423 is 32448590489113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31198409584423 - 2²⁵ = 31198376029991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31198409584427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629813518 + ... + 629863051.

It is an arithmetic number, because the mean of its divisors is an integer number (7799917321440).

Almost surely, 2^{31198409584423} is an apocalyptic number.

31198409584423 is a deficient number, since it is larger than the sum of its proper divisors (1259701337).

31198409584423 is a wasteful number, since it uses less digits than its factorization.

31198409584423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259701336.

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 31198409584423 in words is "thirty-one trillion, one hundred ninety-eight billion, four hundred nine million, five hundred eighty-four thousand, four hundred twenty-three".