3120232981 has 2 divisors, whose sum is σ = 3120232982. Its totient is φ = 3120232980.

The previous prime is 3120232979. The next prime is 3120233033. The reversal of 3120232981 is 1892320213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2986622500 + 133610481 = 54650^2 + 11559^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120232981 - 2¹ = 3120232979 is a prime.

It is a super-2 number, since 2×3120232981² = 19471707711440292722, which contains 22 as substring.

Together with 3120232979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3120232081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560116490 + 1560116491.

It is an arithmetic number, because the mean of its divisors is an integer number (1560116491).

Almost surely, 2^3120232981 is an apocalyptic number.

It is an amenable number.

3120232981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120232981 is an equidigital number, since it uses as much as digits as its factorization.

3120232981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3120232981 is about 55859.0456506375. The cubic root of 3120232981 is about 1461.2650855448.

It can be divided in two parts, 3120232 and 981, that added together give a palindrome (3121213).

The spelling of 3120232981 in words is "three billion, one hundred twenty million, two hundred thirty-two thousand, nine hundred eighty-one".