2431231213 has 2 divisors, whose sum is σ = 2431231214. Its totient is φ = 2431231212.

The previous prime is 2431231199. The next prime is 2431231237. The reversal of 2431231213 is 3121321342.

2431231213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1823460804 + 607770409 = 42702^2 + 24653^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431231213 - 2²¹ = 2429134061 is a prime.

It is a super-2 number, since 2×2431231213² = 11821770422130902738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2431232213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215615606 + 1215615607.

It is an arithmetic number, because the mean of its divisors is an integer number (1215615607).

Almost surely, 2^2431231213 is an apocalyptic number.

It is an amenable number.

2431231213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431231213 is an equidigital number, since it uses as much as digits as its factorization.

2431231213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 2431231213 is about 49307.5168001797. The cubic root of 2431231213 is about 1344.6484458675.

Adding to 2431231213 its reverse (3121321342), we get a palindrome (5552552555).

The spelling of 2431231213 in words is "two billion, four hundred thirty-one million, two hundred thirty-one thousand, two hundred thirteen".