2120445231 has 16 divisors (see below), whose sum is σ = 2839385856. Its totient is φ = 1407580416.

The previous prime is 2120445221. The next prime is 2120445269. The reversal of 2120445231 is 1325440212.

It is not a de Polignac number, because 2120445231 - 2⁵ = 2120445199 is a prime.

It is a super-2 number, since 2×2120445231² = 8992575955341286722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120445211) 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, 1188366 + ... + 1190148.

It is an arithmetic number, because the mean of its divisors is an integer number (177461616).

Almost surely, 2^2120445231 is an apocalyptic number.

2120445231 is a deficient number, since it is larger than the sum of its proper divisors (718940625).

2120445231 is a wasteful number, since it uses less digits than its factorization.

2120445231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2120445231 is about 46048.2923787625. The cubic root of 2120445231 is about 1284.7215818952.

Adding to 2120445231 its reverse (1325440212), we get a palindrome (3445885443).

The spelling of 2120445231 in words is "two billion, one hundred twenty million, four hundred forty-five thousand, two hundred thirty-one".