11719018042 has 4 divisors (see below), whose sum is σ = 17578527066. Its totient is φ = 5859509020.

The previous prime is 11719018027. The next prime is 11719018049. The reversal of 11719018042 is 24081091711.

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., 8979647121 + 2739370921 = 94761^2 + 52339^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11719017989 and 11719018007.

It is not an unprimeable number, because it can be changed into a prime (11719018049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2929754509 + ... + 2929754512.

Almost surely, 2^11719018042 is an apocalyptic number.

11719018042 is a deficient number, since it is larger than the sum of its proper divisors (5859509024).

11719018042 is an equidigital number, since it uses as much as digits as its factorization.

11719018042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5859509023.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 11719018042 in words is "eleven billion, seven hundred nineteen million, eighteen thousand, forty-two".