11100420442 has 32 divisors (see below), whose sum is σ = 17352150480. Its totient is φ = 5321594880.

The previous prime is 11100420391. The next prime is 11100420467. The reversal of 11100420442 is 24402400111.

It can be written as a sum of positive squares in 8 ways, for example, as 7359752521 + 3740667921 = 85789^2 + 61161^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1750734 + ... + 1757062.

Almost surely, 2^11100420442 is an apocalyptic number.

11100420442 is a deficient number, since it is larger than the sum of its proper divisors (6251730038).

11100420442 is a wasteful number, since it uses less digits than its factorization.

11100420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 11100420442 its reverse (24402400111), we get a palindrome (35502820553).

The spelling of 11100420442 in words is "eleven billion, one hundred million, four hundred twenty thousand, four hundred forty-two".