12100121340 has 24 divisors (see below), whose sum is σ = 33880339920. Its totient is φ = 3226699008.

The previous prime is 12100121339. The next prime is 12100121357. The reversal of 12100121340 is 4312100121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100834285 + ... + 100834404.

It is an arithmetic number, because the mean of its divisors is an integer number (1411680830).

Almost surely, 2^12100121340 is an apocalyptic number.

12100121340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100121340 is an abundant number, since it is smaller than the sum of its proper divisors (21780218580).

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

12100121340 is a wasteful number, since it uses less digits than its factorization.

12100121340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201668701 (or 201668699 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12100121340 its reverse (4312100121), we get a palindrome (16412221461).

The spelling of 12100121340 in words is "twelve billion, one hundred million, one hundred twenty-one thousand, three hundred forty".