2131311033 has 6 divisors (see below), whose sum is σ = 3078560394. Its totient is φ = 1420874016.

The previous prime is 2131311011. The next prime is 2131311067. The reversal of 2131311033 is 3301131312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1973758329 + 157552704 = 44427^2 + 12552^2 .

It is not a de Polignac number, because 2131311033 - 2⁵ = 2131311001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131310997 and 2131311015.

It is not an unprimeable number, because it can be changed into a prime (2131321033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118406160 + ... + 118406177.

It is an arithmetic number, because the mean of its divisors is an integer number (513093399).

Almost surely, 2^2131311033 is an apocalyptic number.

It is an amenable number.

2131311033 is a deficient number, since it is larger than the sum of its proper divisors (947249361).

2131311033 is a wasteful number, since it uses less digits than its factorization.

2131311033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236812343 (or 236812340 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 2131311033 is about 46166.1243012666. The cubic root of 2131311033 is about 1286.9122780592.

Adding to 2131311033 its reverse (3301131312), we get a palindrome (5432442345).

The spelling of 2131311033 in words is "two billion, one hundred thirty-one million, three hundred eleven thousand, thirty-three".