2131400033 has 4 divisors (see below), whose sum is σ = 2435885760. Its totient is φ = 1826914308.

The previous prime is 2131400017. The next prime is 2131400081. The reversal of 2131400033 is 3300041312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2131400033 - 2⁴ = 2131400017 is a prime.

It is a super-2 number, since 2×2131400033² = 9085732201344802178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131399984 and 2131400020.

It is not an unprimeable number, because it can be changed into a prime (2131400083) 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, 152242853 + ... + 152242866.

It is an arithmetic number, because the mean of its divisors is an integer number (608971440).

Almost surely, 2^2131400033 is an apocalyptic number.

It is an amenable number.

2131400033 is a deficient number, since it is larger than the sum of its proper divisors (304485727).

2131400033 is an equidigital number, since it uses as much as digits as its factorization.

2131400033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304485726.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2131400033 is about 46167.0882014450. The cubic root of 2131400033 is about 1286.9301909145.

Adding to 2131400033 its reverse (3300041312), we get a palindrome (5431441345).

The spelling of 2131400033 in words is "two billion, one hundred thirty-one million, four hundred thousand, thirty-three".