31012132313191 has 8 divisors (see below), whose sum is σ = 31599106680960. Its totient is φ = 30425226086112.

The previous prime is 31012132313177. The next prime is 31012132313243. The reversal of 31012132313191 is 19131323121013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31012132313191 - 2¹⁹ = 31012131788903 is a prime.

It is a super-2 number, since 2×31012132313191² (a number of 28 digits) contains 22 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 (31012132310191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16115856 + ... + 17937253.

It is an arithmetic number, because the mean of its divisors is an integer number (3949888335120).

Almost surely, 2^{31012132313191} is an apocalyptic number.

31012132313191 is a deficient number, since it is larger than the sum of its proper divisors (586974367769).

31012132313191 is a wasteful number, since it uses less digits than its factorization.

31012132313191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34070345.

The product of its (nonzero) digits is 2916, while the sum is 31.

The spelling of 31012132313191 in words is "thirty-one trillion, twelve billion, one hundred thirty-two million, three hundred thirteen thousand, one hundred ninety-one".