1111102442 has 4 divisors (see below), whose sum is σ = 1666653666. Its totient is φ = 555551220.

The previous prime is 1111102427. The next prime is 1111102481. The reversal of 1111102442 is 2442011111.

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., 1042062961 + 69039481 = 32281^2 + 8309^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1111102442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277775609 + ... + 277775612.

Almost surely, 2^1111102442 is an apocalyptic number.

1111102442 is a deficient number, since it is larger than the sum of its proper divisors (555551224).

1111102442 is an equidigital number, since it uses as much as digits as its factorization.

1111102442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555551223.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1111102442 is about 33333.2032964130. The cubic root of 1111102442 is about 1035.7414749499.

Adding to 1111102442 its reverse (2442011111), we get a palindrome (3553113553).

The spelling of 1111102442 in words is "one billion, one hundred eleven million, one hundred two thousand, four hundred forty-two".