111430421042 has 8 divisors (see below), whose sum is σ = 167373663276. Its totient is φ = 55639199952.

The previous prime is 111430421009. The next prime is 111430421083. The reversal of 111430421042 is 240124034111.

It can be written as a sum of positive squares in 2 ways, for example, as 100260256321 + 11170164721 = 316639^2 + 105689^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 111430420999 and 111430421017.

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, 38003453 + ... + 38006384.

Almost surely, 2^111430421042 is an apocalyptic number.

111430421042 is a deficient number, since it is larger than the sum of its proper divisors (55943242234).

111430421042 is an equidigital number, since it uses as much as digits as its factorization.

111430421042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76010572.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 111430421042 its reverse (240124034111), we get a palindrome (351554455153).

The spelling of 111430421042 in words is "one hundred eleven billion, four hundred thirty million, four hundred twenty-one thousand, forty-two".