10240111420 has 144 divisors (see below), whose sum is σ = 27201585600. Its totient is φ = 3169520640.

The previous prime is 10240111411. The next prime is 10240111447. The reversal of 10240111420 is 2411104201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10240111394 and 10240111403.

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, 2522032 + ... + 2526088.

It is an arithmetic number, because the mean of its divisors is an integer number (188899900).

Almost surely, 2^10240111420 is an apocalyptic number.

10240111420 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 10240111420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13600792800).

10240111420 is an abundant number, since it is smaller than the sum of its proper divisors (16961474180).

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

10240111420 is a wasteful number, since it uses less digits than its factorization.

10240111420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4244 (or 4231 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10240111420 its reverse (2411104201), we get a palindrome (12651215621).

The spelling of 10240111420 in words is "ten billion, two hundred forty million, one hundred eleven thousand, four hundred twenty".