12123114140 has 12 divisors (see below), whose sum is σ = 25458539736. Its totient is φ = 4849245648.

The previous prime is 12123114131. The next prime is 12123114167. The reversal of 12123114140 is 4141132121.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 606155707 = 12123114140 / (1 + 2 + 1 + 2 + 3 + 1 + 1 + 4 + 1 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303077834 + ... + 303077873.

It is an arithmetic number, because the mean of its divisors is an integer number (2121544978).

Almost surely, 2^12123114140 is an apocalyptic number.

12123114140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12123114140 is an abundant number, since it is smaller than the sum of its proper divisors (13335425596).

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

12123114140 is a wasteful number, since it uses less digits than its factorization.

12123114140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606155716 (or 606155714 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12123114140 its reverse (4141132121), we get a palindrome (16264246261).

The spelling of 12123114140 in words is "twelve billion, one hundred twenty-three million, one hundred fourteen thousand, one hundred forty".