10111031420 has 36 divisors (see below), whose sum is σ = 24699807720. Its totient is φ = 3466639008.

The previous prime is 10111031419. The next prime is 10111031429. The reversal of 10111031420 is 2413011101.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 10111031395 and 10111031404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111031429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5157710 + ... + 5159669.

It is an arithmetic number, because the mean of its divisors is an integer number (686105770).

Almost surely, 2^10111031420 is an apocalyptic number.

10111031420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111031420 is an abundant number, since it is smaller than the sum of its proper divisors (14588776300).

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

10111031420 is a wasteful number, since it uses less digits than its factorization.

10111031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10317402 (or 10317393 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10111031420 its reverse (2413011101), we get a palindrome (12524042521).

The spelling of 10111031420 in words is "ten billion, one hundred eleven million, thirty-one thousand, four hundred twenty".