13231553145 has 16 divisors (see below), whose sum is σ = 21853404672. Its totient is φ = 6829188480.

The previous prime is 13231553141. The next prime is 13231553147. The reversal of 13231553145 is 54135513231.

It is not a de Polignac number, because 13231553145 - 2² = 13231553141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13231553141) 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, 14227012 + ... + 14227941.

It is an arithmetic number, because the mean of its divisors is an integer number (1365837792).

Almost surely, 2^13231553145 is an apocalyptic number.

13231553145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13231553145 is a deficient number, since it is larger than the sum of its proper divisors (8621851527).

13231553145 is a wasteful number, since it uses less digits than its factorization.

13231553145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28454992.

The product of its digits is 27000, while the sum is 33.

The spelling of 13231553145 in words is "thirteen billion, two hundred thirty-one million, five hundred fifty-three thousand, one hundred forty-five".