2153331131 has 4 divisors (see below), whose sum is σ = 2460949872. Its totient is φ = 1845712392.

The previous prime is 2153331119. The next prime is 2153331133. The reversal of 2153331131 is 1311333512.

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 2153331131 - 2¹⁸ = 2153068987 is a prime.

It is a super-2 number, since 2×2153331131² = 9273669919467478322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2153331097 and 2153331106.

It is not an unprimeable number, because it can be changed into a prime (2153331133) 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, 153809360 + ... + 153809373.

It is an arithmetic number, because the mean of its divisors is an integer number (615237468).

Almost surely, 2^2153331131 is an apocalyptic number.

2153331131 is a deficient number, since it is larger than the sum of its proper divisors (307618741).

2153331131 is an equidigital number, since it uses as much as digits as its factorization.

2153331131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307618740.

The product of its digits is 810, while the sum is 23.

The square root of 2153331131 is about 46403.9990841307. Note that the first 3 decimals coincide. The cubic root of 2153331131 is about 1291.3291052654.

Adding to 2153331131 its reverse (1311333512), we get a palindrome (3464664643).

The spelling of 2153331131 in words is "two billion, one hundred fifty-three million, three hundred thirty-one thousand, one hundred thirty-one".