1013105212045 has 4 divisors (see below), whose sum is σ = 1215726254460. Its totient is φ = 810484169632.

The previous prime is 1013105212033. The next prime is 1013105212109. The reversal of 1013105212045 is 5402125013101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115489186569 + 897616025476 = 339837^2 + 947426^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013105212045 - 2²¹ = 1013103114893 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 101310521200 + ... + 101310521209.

It is an arithmetic number, because the mean of its divisors is an integer number (303931563615).

Almost surely, 2^{1013105212045} is an apocalyptic number.

It is an amenable number.

1013105212045 is a deficient number, since it is larger than the sum of its proper divisors (202621042415).

1013105212045 is an equidigital number, since it uses as much as digits as its factorization.

1013105212045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202621042414.

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 1013105212045 in words is "one trillion, thirteen billion, one hundred five million, two hundred twelve thousand, forty-five".