12101020140 has 96 divisors (see below), whose sum is σ = 36983890944. Its totient is φ = 2931932160.

The previous prime is 12101020093. The next prime is 12101020157. The reversal of 12101020140 is 4102010121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1505412 + ... + 1513428.

It is an arithmetic number, because the mean of its divisors is an integer number (385248864).

Almost surely, 2^12101020140 is an apocalyptic number.

12101020140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101020140 is an abundant number, since it is smaller than the sum of its proper divisors (24882870804).

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

12101020140 is a wasteful number, since it uses less digits than its factorization.

12101020140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10327 (or 10325 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12101020140 its reverse (4102010121), we get a palindrome (16203030261).

The spelling of 12101020140 in words is "twelve billion, one hundred one million, twenty thousand, one hundred forty".