111201551344 has 20 divisors (see below), whose sum is σ = 232026314296. Its totient is φ = 51323792832.

The previous prime is 111201551323. The next prime is 111201551353. The reversal of 111201551344 is 443155102111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267311214 + ... + 267311629.

Almost surely, 2^111201551344 is an apocalyptic number.

It is an amenable number.

111201551344 is an abundant number, since it is smaller than the sum of its proper divisors (120824762952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111201551344 is a wasteful number, since it uses less digits than its factorization.

111201551344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534622864 (or 534622858 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 111201551344 its reverse (443155102111), we get a palindrome (554356653455).

The spelling of 111201551344 in words is "one hundred eleven billion, two hundred one million, five hundred fifty-one thousand, three hundred forty-four".