2031749903231 has 4 divisors (see below), whose sum is σ = 2034331543032. Its totient is φ = 2029168263432.

The previous prime is 2031749903201. The next prime is 2031749903257. The reversal of 2031749903231 is 1323099471302.

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 2031749903231 - 2¹⁰ = 2031749902207 is a prime.

It is a super-2 number, since 2×2031749903231² (a number of 25 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 (2031749903201) 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, 1290818720 + ... + 1290820293.

It is an arithmetic number, because the mean of its divisors is an integer number (508582885758).

Almost surely, 2^{2031749903231} is an apocalyptic number.

2031749903231 is a deficient number, since it is larger than the sum of its proper divisors (2581639801).

2031749903231 is an equidigital number, since it uses as much as digits as its factorization.

2031749903231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581639800.

The product of its (nonzero) digits is 244944, while the sum is 44.

The spelling of 2031749903231 in words is "two trillion, thirty-one billion, seven hundred forty-nine million, nine hundred three thousand, two hundred thirty-one".