11420520042 has 8 divisors (see below), whose sum is σ = 22841040096. Its totient is φ = 3806840012.

The previous prime is 11420519987. The next prime is 11420520043. The reversal of 11420520042 is 24002502411.

It is a sphenic number, since it is the product of 3 distinct primes.

11420520042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11420520043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 951709998 + ... + 951710009.

It is an arithmetic number, because the mean of its divisors is an integer number (2855130012).

Almost surely, 2^11420520042 is an apocalyptic number.

11420520042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11420520042 is a wasteful number, since it uses less digits than its factorization.

11420520042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903420012.

The product of its (nonzero) digits is 640, while the sum is 21.

The spelling of 11420520042 in words is "eleven billion, four hundred twenty million, five hundred twenty thousand, forty-two".