3123022081 has 2 divisors, whose sum is σ = 3123022082. Its totient is φ = 3123022080.

The previous prime is 3123022061. The next prime is 3123022141. The reversal of 3123022081 is 1802203213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3123021456 + 625 = 55884^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123022081 - 2⁹ = 3123021569 is a prime.

It is a super-2 number, since 2×3123022081² = 19506533836827141122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3123022061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561511040 + 1561511041.

It is an arithmetic number, because the mean of its divisors is an integer number (1561511041).

Almost surely, 2^3123022081 is an apocalyptic number.

It is an amenable number.

3123022081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123022081 is an equidigital number, since it uses as much as digits as its factorization.

3123022081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 3123022081 is about 55884.0055919402. The cubic root of 3123022081 is about 1461.7003522608.

Adding to 3123022081 its reverse (1802203213), we get a palindrome (4925225294).

The spelling of 3123022081 in words is "three billion, one hundred twenty-three million, twenty-two thousand, eighty-one".