13131522019999 has 4 divisors (see below), whose sum is σ = 13131838110600. Its totient is φ = 13131205929400.

The previous prime is 13131522019991. The next prime is 13131522020003. The reversal of 13131522019999 is 99991022513131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13131522019999 - 2³ = 13131522019991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131522019991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157982977 + ... + 158066074.

It is an arithmetic number, because the mean of its divisors is an integer number (3282959527650).

Almost surely, 2^{13131522019999} is an apocalyptic number.

13131522019999 is a deficient number, since it is larger than the sum of its proper divisors (316090601).

13131522019999 is an equidigital number, since it uses as much as digits as its factorization.

13131522019999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316090600.

The product of its (nonzero) digits is 1180980, while the sum is 55.

The spelling of 13131522019999 in words is "thirteen trillion, one hundred thirty-one billion, five hundred twenty-two million, nineteen thousand, nine hundred ninety-nine".