2011325431 has 4 divisors (see below), whose sum is σ = 2018432872. Its totient is φ = 2004217992.

The previous prime is 2011325423. The next prime is 2011325447. The reversal of 2011325431 is 1345231102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1345231102 = 2 ⋅672615551.

It is a cyclic number.

It is not a de Polignac number, because 2011325431 - 2³ = 2011325423 is a prime.

It is a super-2 number, since 2×2011325431² = 8090859978774671522, 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 (2011325401) 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, 3553296 + ... + 3553861.

It is an arithmetic number, because the mean of its divisors is an integer number (504608218).

Almost surely, 2^2011325431 is an apocalyptic number.

2011325431 is a deficient number, since it is larger than the sum of its proper divisors (7107441).

2011325431 is an equidigital number, since it uses as much as digits as its factorization.

2011325431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7107440.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2011325431 is about 44847.8029673695. The cubic root of 2011325431 is about 1262.2947664427.

Adding to 2011325431 its reverse (1345231102), we get a palindrome (3356556533).

The spelling of 2011325431 in words is "two billion, eleven million, three hundred twenty-five thousand, four hundred thirty-one".