45512012402531 has 2 divisors, whose sum is σ = 45512012402532. Its totient is φ = 45512012402530.

The previous prime is 45512012402491. The next prime is 45512012402603. The reversal of 45512012402531 is 13520421021554.

45512012402531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45512012402531 is a prime.

It is a super-2 number, since 2×45512012402531² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45512012402491 and 45512012402500.

It is not a weakly prime, because it can be changed into another prime (45512012462531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22756006201265 + 22756006201266.

It is an arithmetic number, because the mean of its divisors is an integer number (22756006201266).

Almost surely, 2^{45512012402531} is an apocalyptic number.

45512012402531 is a deficient number, since it is larger than the sum of its proper divisors (1).

45512012402531 is an equidigital number, since it uses as much as digits as its factorization.

45512012402531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 45512012402531 in words is "forty-five trillion, five hundred twelve billion, twelve million, four hundred two thousand, five hundred thirty-one".