2045021125513 has 2 divisors, whose sum is σ = 2045021125514. Its totient is φ = 2045021125512.

The previous prime is 2045021125489. The next prime is 2045021125529. The reversal of 2045021125513 is 3155211205402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034760941824 + 1010260183689 = 1017232^2 + 1005117^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045021125513 - 2⁵ = 2045021125481 is a prime.

It is a super-2 number, since 2×2045021125513² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2045021125813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022510562756 + 1022510562757.

It is an arithmetic number, because the mean of its divisors is an integer number (1022510562757).

Almost surely, 2^{2045021125513} is an apocalyptic number.

It is an amenable number.

2045021125513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045021125513 is an equidigital number, since it uses as much as digits as its factorization.

2045021125513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 2045021125513 in words is "two trillion, forty-five billion, twenty-one million, one hundred twenty-five thousand, five hundred thirteen".