10120421140 has 48 divisors (see below), whose sum is σ = 21790762560. Its totient is φ = 3945893120.

The previous prime is 10120421111. The next prime is 10120421159. The reversal of 10120421140 is 4112402101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1027479 + ... + 1037281.

It is an arithmetic number, because the mean of its divisors is an integer number (453974220).

Almost surely, 2^10120421140 is an apocalyptic number.

10120421140 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 10120421140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10895381280).

10120421140 is an abundant number, since it is smaller than the sum of its proper divisors (11670341420).

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

10120421140 is a wasteful number, since it uses less digits than its factorization.

10120421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112 (or 11110 counting only the distinct ones).

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

Adding to 10120421140 its reverse (4112402101), we get a palindrome (14232823241).

The spelling of 10120421140 in words is "ten billion, one hundred twenty million, four hundred twenty-one thousand, one hundred forty".