111021431042 has 8 divisors (see below), whose sum is σ = 166567752000. Its totient is φ = 55498847044.

The previous prime is 111021431041. The next prime is 111021431057. The reversal of 111021431042 is 240134120111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×111021431042² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111021431041) 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, 5922542 + ... + 5941257.

It is an arithmetic number, because the mean of its divisors is an integer number (20820969000).

Almost surely, 2^111021431042 is an apocalyptic number.

111021431042 is a deficient number, since it is larger than the sum of its proper divisors (55546320958).

111021431042 is a wasteful number, since it uses less digits than its factorization.

111021431042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11868480.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 111021431042 its reverse (240134120111), we get a palindrome (351155551153).

The spelling of 111021431042 in words is "one hundred eleven billion, twenty-one million, four hundred thirty-one thousand, forty-two".