11125011420 has 144 divisors (see below), whose sum is σ = 35174630400. Its totient is φ = 2951505216.

The previous prime is 11125011409. The next prime is 11125011439. The reversal of 11125011420 is 2411052111.

11125011420 is a `hidden beast` number, since 11 + 12 + 501 + 142 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11125011393 and 11125011402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 961389 + ... + 972891.

Almost surely, 2^11125011420 is an apocalyptic number.

11125011420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11125011420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17587315200).

11125011420 is an abundant number, since it is smaller than the sum of its proper divisors (24049618980).

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

11125011420 is a wasteful number, since it uses less digits than its factorization.

11125011420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11726 (or 11712 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 11125011420 its reverse (2411052111), we get a palindrome (13536063531).

The spelling of 11125011420 in words is "eleven billion, one hundred twenty-five million, eleven thousand, four hundred twenty".