11321204042 has 4 divisors (see below), whose sum is σ = 16981806066. Its totient is φ = 5660602020.

The previous prime is 11321204021. The next prime is 11321204107. The reversal of 11321204042 is 24040212311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24040212311 = 269 ⋅89368819.

It can be written as a sum of positive squares in only one way, i.e., 11274404761 + 46799281 = 106181^2 + 6841^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830301009 + ... + 2830301012.

Almost surely, 2^11321204042 is an apocalyptic number.

11321204042 is a deficient number, since it is larger than the sum of its proper divisors (5660602024).

11321204042 is an equidigital number, since it uses as much as digits as its factorization.

11321204042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660602023.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11321204042 its reverse (24040212311), we get a palindrome (35361416353).

The spelling of 11321204042 in words is "eleven billion, three hundred twenty-one million, two hundred four thousand, forty-two".