2131020303 has 4 divisors (see below), whose sum is σ = 2841360408. Its totient is φ = 1420680200.

The previous prime is 2131020301. The next prime is 2131020313. The reversal of 2131020303 is 3030201312.

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 2131020303 - 2¹ = 2131020301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131020301) 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, 355170048 + ... + 355170053.

It is an arithmetic number, because the mean of its divisors is an integer number (710340102).

Almost surely, 2^2131020303 is an apocalyptic number.

2131020303 is a deficient number, since it is larger than the sum of its proper divisors (710340105).

2131020303 is an equidigital number, since it uses as much as digits as its factorization.

2131020303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710340104.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 2131020303 is about 46162.9754565279. The cubic root of 2131020303 is about 1286.8537599273.

Adding to 2131020303 its reverse (3030201312), we get a palindrome (5161221615).

The spelling of 2131020303 in words is "two billion, one hundred thirty-one million, twenty thousand, three hundred three".