2153931031 has 8 divisors (see below), whose sum is σ = 2462305184. Its totient is φ = 1845724320.

The previous prime is 2153930983. The next prime is 2153931053. The reversal of 2153931031 is 1301393512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2153931031 - 2⁷ = 2153930903 is a prime.

It is a super-2 number, since 2×2153931031² = 9278837772609445922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153937031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12960 + ... + 66901.

It is an arithmetic number, because the mean of its divisors is an integer number (307788148).

Almost surely, 2^2153931031 is an apocalyptic number.

2153931031 is a deficient number, since it is larger than the sum of its proper divisors (308374153).

2153931031 is an equidigital number, since it uses as much as digits as its factorization.

2153931031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83721.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 2153931031 is about 46410.4625165490. The cubic root of 2153931031 is about 1291.4490119519.

The spelling of 2153931031 in words is "two billion, one hundred fifty-three million, nine hundred thirty-one thousand, thirty-one".