3865031412331 has 4 divisors (see below), whose sum is σ = 3865974337000. Its totient is φ = 3864088487664.

The previous prime is 3865031412313. The next prime is 3865031412427. The reversal of 3865031412331 is 1332141305683.

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 3865031412331 - 2¹¹ = 3865031410283 is a prime.

It is a super-2 number, since 2×3865031412331² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3865031412301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471456186 + ... + 471464383.

It is an arithmetic number, because the mean of its divisors is an integer number (966493584250).

Almost surely, 2^{3865031412331} is an apocalyptic number.

3865031412331 is a deficient number, since it is larger than the sum of its proper divisors (942924669).

3865031412331 is an equidigital number, since it uses as much as digits as its factorization.

3865031412331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942924668.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 3865031412331 in words is "three trillion, eight hundred sixty-five billion, thirty-one million, four hundred twelve thousand, three hundred thirty-one".