2324531981 has 2 divisors, whose sum is σ = 2324531982. Its totient is φ = 2324531980.

The previous prime is 2324531939. The next prime is 2324532013. The reversal of 2324531981 is 1891354232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2234452900 + 90079081 = 47270^2 + 9491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2324531981 is a prime.

It is a super-2 number, since 2×2324531981² = 10806897861383568722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2324531581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1162265990 + 1162265991.

It is an arithmetic number, because the mean of its divisors is an integer number (1162265991).

Almost surely, 2^2324531981 is an apocalyptic number.

It is an amenable number.

2324531981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2324531981 is an equidigital number, since it uses as much as digits as its factorization.

2324531981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 2324531981 is about 48213.4004297560. The cubic root of 2324531981 is about 1324.6826307169.

The spelling of 2324531981 in words is "two billion, three hundred twenty-four million, five hundred thirty-one thousand, nine hundred eighty-one".