111043124242 has 4 divisors (see below), whose sum is σ = 166564686366. Its totient is φ = 55521562120.

The previous prime is 111043124239. The next prime is 111043124251. The reversal of 111043124242 is 242421340111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 93489789121 + 17553335121 = 305761^2 + 132489^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27760781059 + ... + 27760781062.

Almost surely, 2^111043124242 is an apocalyptic number.

111043124242 is a deficient number, since it is larger than the sum of its proper divisors (55521562124).

111043124242 is an equidigital number, since it uses as much as digits as its factorization.

111043124242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55521562123.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 111043124242 its reverse (242421340111), we get a palindrome (353464464353).

The spelling of 111043124242 in words is "one hundred eleven billion, forty-three million, one hundred twenty-four thousand, two hundred forty-two".