12123140451 has 8 divisors (see below), whose sum is σ = 16167690240. Its totient is φ = 8080342152.

The previous prime is 12123140431. The next prime is 12123140459. The reversal of 12123140451 is 15404132121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12123140451 - 2⁶ = 12123140387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12123140459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421635 + ... + 449468.

It is an arithmetic number, because the mean of its divisors is an integer number (2020961280).

Almost surely, 2^12123140451 is an apocalyptic number.

12123140451 is a deficient number, since it is larger than the sum of its proper divisors (4044549789).

12123140451 is an equidigital number, since it uses as much as digits as its factorization.

12123140451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875745.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 12123140451 its reverse (15404132121), we get a palindrome (27527272572).

The spelling of 12123140451 in words is "twelve billion, one hundred twenty-three million, one hundred forty thousand, four hundred fifty-one".