2131997003 has 4 divisors (see below), whose sum is σ = 2132316120. Its totient is φ = 2131677888.

The previous prime is 2131996991. The next prime is 2131997039. The reversal of 2131997003 is 3007991312.

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 2131997003 - 2⁴ = 2131996987 is a prime.

It is a super-2 number, since 2×2131997003² = 9090822441601964018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131997093) 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, 149318 + ... + 162971.

It is an arithmetic number, because the mean of its divisors is an integer number (533079030).

Almost surely, 2^2131997003 is an apocalyptic number.

2131997003 is a deficient number, since it is larger than the sum of its proper divisors (319117).

2131997003 is an equidigital number, since it uses as much as digits as its factorization.

2131997003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319116.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 2131997003 is about 46173.5530688293. The cubic root of 2131997003 is about 1287.0503290068.

The spelling of 2131997003 in words is "two billion, one hundred thirty-one million, nine hundred ninety-seven thousand, three".