2043311031 has 12 divisors (see below), whose sum is σ = 2954896360. Its totient is φ = 1360616400.

The previous prime is 2043311027. The next prime is 2043311047. The reversal of 2043311031 is 1301133402.

It is not a de Polignac number, because 2043311031 - 2² = 2043311027 is a prime.

It is a super-2 number, since 2×2043311031² = 8350239938812565922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2043310995 and 2043311013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043311021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124420 + ... + 139881.

Almost surely, 2^2043311031 is an apocalyptic number.

2043311031 is a deficient number, since it is larger than the sum of its proper divisors (911585329).

2043311031 is a wasteful number, since it uses less digits than its factorization.

2043311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265166 (or 265163 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2043311031 is about 45202.9980311041. The cubic root of 2043311031 is about 1268.9509246335.

Adding to 2043311031 its reverse (1301133402), we get a palindrome (3344444433).

The spelling of 2043311031 in words is "two billion, forty-three million, three hundred eleven thousand, thirty-one".