3920112031331 has 2 divisors, whose sum is σ = 3920112031332. Its totient is φ = 3920112031330.

The previous prime is 3920112031223. The next prime is 3920112031333. The reversal of 3920112031331 is 1331302110293.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1331302110293) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3920112031331 - 2²⁶ = 3920044922467 is a prime.

It is a super-2 number, since 2×3920112031331² (a number of 26 digits) contains 22 as substring.

Together with 3920112031333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3920112031294 and 3920112031303.

It is not a weakly prime, because it can be changed into another prime (3920112031333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1960056015665 + 1960056015666.

It is an arithmetic number, because the mean of its divisors is an integer number (1960056015666).

Almost surely, 2^{3920112031331} is an apocalyptic number.

3920112031331 is a deficient number, since it is larger than the sum of its proper divisors (1).

3920112031331 is an equidigital number, since it uses as much as digits as its factorization.

3920112031331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 3920112031331 in words is "three trillion, nine hundred twenty billion, one hundred twelve million, thirty-one thousand, three hundred thirty-one".