180344428113 has 4 divisors (see below), whose sum is σ = 240459237488. Its totient is φ = 120229618740.

The previous prime is 180344428091. The next prime is 180344428123. The reversal of 180344428113 is 311824443081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 180344428113 - 2¹² = 180344424017 is a prime.

It is a super-2 number, since 2×180344428113² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180344428123) 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, 30057404683 + ... + 30057404688.

It is an arithmetic number, because the mean of its divisors is an integer number (60114809372).

Almost surely, 2^180344428113 is an apocalyptic number.

It is an amenable number.

180344428113 is a deficient number, since it is larger than the sum of its proper divisors (60114809375).

180344428113 is an equidigital number, since it uses as much as digits as its factorization.

180344428113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60114809374.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 180344428113 in words is "one hundred eighty billion, three hundred forty-four million, four hundred twenty-eight thousand, one hundred thirteen".