2231801913 has 16 divisors (see below), whose sum is σ = 3325436352. Its totient is φ = 1319616000.

The previous prime is 2231801843. The next prime is 2231801947. The reversal of 2231801913 is 3191081322.

It is not a de Polignac number, because 2231801913 - 2¹³ = 2231793721 is a prime.

It is a super-3 number, since 3×2231801913³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2231801993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823408 + ... + 826113.

It is an arithmetic number, because the mean of its divisors is an integer number (207839772).

Almost surely, 2^2231801913 is an apocalyptic number.

It is an amenable number.

2231801913 is a deficient number, since it is larger than the sum of its proper divisors (1093634439).

2231801913 is a wasteful number, since it uses less digits than its factorization.

2231801913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649576.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 2231801913 is about 47241.9507747087. The cubic root of 2231801913 is about 1306.8283533767.

The spelling of 2231801913 in words is "two billion, two hundred thirty-one million, eight hundred one thousand, nine hundred thirteen".