2131245203 has 4 divisors (see below), whose sum is σ = 2151937008. Its totient is φ = 2110553400.

The previous prime is 2131245167. The next prime is 2131245209. The reversal of 2131245203 is 3025421312.

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 2131245203 - 2¹⁰ = 2131244179 is a prime.

It is a super-2 number, since 2×2131245203² = 9084412230621022418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131245209) 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, 10345748 + ... + 10345953.

It is an arithmetic number, because the mean of its divisors is an integer number (537984252).

Almost surely, 2^2131245203 is an apocalyptic number.

2131245203 is a deficient number, since it is larger than the sum of its proper divisors (20691805).

2131245203 is a wasteful number, since it uses less digits than its factorization.

2131245203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20691804.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2131245203 is about 46165.4113270964. The cubic root of 2131245203 is about 1286.8990282634.

Adding to 2131245203 its reverse (3025421312), we get a palindrome (5156666515).

The spelling of 2131245203 in words is "two billion, one hundred thirty-one million, two hundred forty-five thousand, two hundred three".