2131203011 has 24 divisors (see below), whose sum is σ = 2715534720. Its totient is φ = 1659985152.

The previous prime is 2131203007. The next prime is 2131203017. The reversal of 2131203011 is 1103021312.

It is not a de Polignac number, because 2131203011 - 2² = 2131203007 is a prime.

It is a super-2 number, since 2×2131203011² = 9084052548190932242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131203017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19955 + ... + 68268.

It is an arithmetic number, because the mean of its divisors is an integer number (113147280).

Almost surely, 2^2131203011 is an apocalyptic number.

2131203011 is a deficient number, since it is larger than the sum of its proper divisors (584331709).

2131203011 is a wasteful number, since it uses less digits than its factorization.

2131203011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88283 (or 88276 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2131203011 is about 46164.9543593406. The cubic root of 2131203011 is about 1286.8905360133.

Adding to 2131203011 its reverse (1103021312), we get a palindrome (3234224323).

The spelling of 2131203011 in words is "two billion, one hundred thirty-one million, two hundred three thousand, eleven".