13123563502040 has 64 divisors (see below), whose sum is σ = 31271723170560. Its totient is φ = 4946246363520.

The previous prime is 13123563502039. The next prime is 13123563502069. The reversal of 13123563502040 is 4020536532131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106391666 + ... + 106514945.

It is an arithmetic number, because the mean of its divisors is an integer number (488620674540).

Almost surely, 2^{13123563502040} is an apocalyptic number.

13123563502040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123563502040 is an abundant number, since it is smaller than the sum of its proper divisors (18148159668520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123563502040 is a wasteful number, since it uses less digits than its factorization.

13123563502040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212906712 (or 212906708 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 13123563502040 in words is "thirteen trillion, one hundred twenty-three billion, five hundred sixty-three million, five hundred two thousand, forty".