13520233040523 has 16 divisors (see below), whose sum is σ = 19665954118272. Its totient is φ = 8194013712000.

The previous prime is 13520233040507. The next prime is 13520233040527. The reversal of 13520233040523 is 32504033202531.

It is not a de Polignac number, because 13520233040523 - 2⁴ = 13520233040507 is a prime.

It is a super-2 number, since 2×13520233040523² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (13520233040527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2591283 + ... + 5809923.

It is an arithmetic number, because the mean of its divisors is an integer number (1229122132392).

Almost surely, 2^{13520233040523} is an apocalyptic number.

13520233040523 is a deficient number, since it is larger than the sum of its proper divisors (6145721077749).

13520233040523 is a wasteful number, since it uses less digits than its factorization.

13520233040523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345946.

The product of its (nonzero) digits is 64800, while the sum is 33.

The spelling of 13520233040523 in words is "thirteen trillion, five hundred twenty billion, two hundred thirty-three million, forty thousand, five hundred twenty-three".