111543402152 has 32 divisors (see below), whose sum is σ = 257407852800. Its totient is φ = 44127059904.

The previous prime is 111543402109. The next prime is 111543402167. The reversal of 111543402152 is 251204345111.

It is a happy number.

It is a super-2 number, since 2×111543402152² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76608752 + ... + 76610207.

It is an arithmetic number, because the mean of its divisors is an integer number (8043995400).

Almost surely, 2^111543402152 is an apocalyptic number.

It is an amenable number.

111543402152 is an abundant number, since it is smaller than the sum of its proper divisors (145864450648).

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

111543402152 is a wasteful number, since it uses less digits than its factorization.

111543402152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153218985 (or 153218981 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 111543402152 its reverse (251204345111), we get a palindrome (362747747263).

The spelling of 111543402152 in words is "one hundred eleven billion, five hundred forty-three million, four hundred two thousand, one hundred fifty-two".