11420042124 has 96 divisors (see below), whose sum is σ = 28315526400. Its totient is φ = 3576697600.

The previous prime is 11420042113. The next prime is 11420042141. The reversal of 11420042124 is 42124002411.

It is a super-2 number, since 2×11420042124² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11420042124.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2070979 + ... + 2076485.

It is an arithmetic number, because the mean of its divisors is an integer number (294953400).

Almost surely, 2^11420042124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11420042124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14157763200).

11420042124 is an abundant number, since it is smaller than the sum of its proper divisors (16895484276).

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

11420042124 is a wasteful number, since it uses less digits than its factorization.

11420042124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703 (or 5701 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 11420042124 its reverse (42124002411), we get a palindrome (53544044535).

The spelling of 11420042124 in words is "eleven billion, four hundred twenty million, forty-two thousand, one hundred twenty-four".