45261811121 has 2 divisors, whose sum is σ = 45261811122. Its totient is φ = 45261811120.

The previous prime is 45261811117. The next prime is 45261811139. The reversal of 45261811121 is 12111816254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45236610721 + 25200400 = 212689^2 + 5020^2 .

It is a cyclic number.

It is not a de Polignac number, because 45261811121 - 2² = 45261811117 is a prime.

It is not a weakly prime, because it can be changed into another prime (45261811151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22630905560 + 22630905561.

It is an arithmetic number, because the mean of its divisors is an integer number (22630905561).

Almost surely, 2^45261811121 is an apocalyptic number.

It is an amenable number.

45261811121 is a deficient number, since it is larger than the sum of its proper divisors (1).

45261811121 is an equidigital number, since it uses as much as digits as its factorization.

45261811121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 32.

The spelling of 45261811121 in words is "forty-five billion, two hundred sixty-one million, eight hundred eleven thousand, one hundred twenty-one".