111432535420 has 12 divisors (see below), whose sum is σ = 234008324424. Its totient is φ = 44573014160.

The previous prime is 111432535411. The next prime is 111432535447. The reversal of 111432535420 is 24535234111.

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, 2785813366 + ... + 2785813405.

It is an arithmetic number, because the mean of its divisors is an integer number (19500693702).

Almost surely, 2^111432535420 is an apocalyptic number.

111432535420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111432535420 is an abundant number, since it is smaller than the sum of its proper divisors (122575789004).

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

111432535420 is a wasteful number, since it uses less digits than its factorization.

111432535420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571626780 (or 5571626778 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 111432535420 its reverse (24535234111), we get a palindrome (135967769531).

The spelling of 111432535420 in words is "one hundred eleven billion, four hundred thirty-two million, five hundred thirty-five thousand, four hundred twenty".