13345155331 has 4 divisors (see below), whose sum is σ = 13527965752. Its totient is φ = 13162344912.

The previous prime is 13345155319. The next prime is 13345155347. The reversal of 13345155331 is 13355154331.

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 13345155331 - 2¹³ = 13345147139 is a prime.

It is a super-2 number, since 2×13345155331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13345155361) 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, 91405101 + ... + 91405246.

It is an arithmetic number, because the mean of its divisors is an integer number (3381991438).

Almost surely, 2^13345155331 is an apocalyptic number.

13345155331 is a deficient number, since it is larger than the sum of its proper divisors (182810421).

13345155331 is an equidigital number, since it uses as much as digits as its factorization.

13345155331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182810420.

The product of its digits is 40500, while the sum is 34.

The spelling of 13345155331 in words is "thirteen billion, three hundred forty-five million, one hundred fifty-five thousand, three hundred thirty-one".