11111241420 has 120 divisors (see below), whose sum is σ = 36691023600. Its totient is φ = 2807042688.

The previous prime is 11111241413. The next prime is 11111241431. The reversal of 11111241420 is 2414211111.

11111241420 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 1 + 241 + 420 = 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 = 11111241393 and 11111241402.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 149715 + ... + 211274.

It is an arithmetic number, because the mean of its divisors is an integer number (305758530).

Almost surely, 2^11111241420 is an apocalyptic number.

11111241420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111241420 is an abundant number, since it is smaller than the sum of its proper divisors (25579782180).

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

11111241420 is a wasteful number, since it uses less digits than its factorization.

11111241420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361029 (or 361018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11111241420 its reverse (2414211111), we get a palindrome (13525452531).

The spelling of 11111241420 in words is "eleven billion, one hundred eleven million, two hundred forty-one thousand, four hundred twenty".