31123302031199 has 16 divisors (see below), whose sum is σ = 35607785680896. Its totient is φ = 26648400492000.

The previous prime is 31123302031163. The next prime is 31123302031229. The reversal of 31123302031199 is 99113020332113.

It is a de Polignac number, because none of the positive numbers 2^k-31123302031199 is a prime.

It is a super-3 number, since 3×31123302031199³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31123302031699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48768629 + ... + 49402689.

It is an arithmetic number, because the mean of its divisors is an integer number (2225486605056).

Almost surely, 2^{31123302031199} is an apocalyptic number.

31123302031199 is a deficient number, since it is larger than the sum of its proper divisors (4484483649697).

31123302031199 is a wasteful number, since it uses less digits than its factorization.

31123302031199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641606.

The product of its (nonzero) digits is 26244, while the sum is 38.

The spelling of 31123302031199 in words is "thirty-one trillion, one hundred twenty-three billion, three hundred two million, thirty-one thousand, one hundred ninety-nine".