4231022981 has 2 divisors, whose sum is σ = 4231022982. Its totient is φ = 4231022980.

The previous prime is 4231022933. The next prime is 4231023011. The reversal of 4231022981 is 1892201324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2985638881 + 1245384100 = 54641^2 + 35290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4231022981 is a prime.

It is a super-2 number, since 2×4231022981² = 35803110931500252722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4231022911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115511490 + 2115511491.

It is an arithmetic number, because the mean of its divisors is an integer number (2115511491).

Almost surely, 2^4231022981 is an apocalyptic number.

It is an amenable number.

4231022981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231022981 is an equidigital number, since it uses as much as digits as its factorization.

4231022981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 4231022981 is about 65046.3141230923. The cubic root of 4231022981 is about 1617.3913945173.

The spelling of 4231022981 in words is "four billion, two hundred thirty-one million, twenty-two thousand, nine hundred eighty-one".