12023453140 has 24 divisors (see below), whose sum is σ = 25252899840. Its totient is φ = 4808686368.

The previous prime is 12023453089. The next prime is 12023453179. The reversal of 12023453140 is 4135432021.

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, 112021 + ... + 191299.

It is an arithmetic number, because the mean of its divisors is an integer number (1052204160).

Almost surely, 2^12023453140 is an apocalyptic number.

12023453140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12023453140 is an abundant number, since it is smaller than the sum of its proper divisors (13229446700).

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

12023453140 is a wasteful number, since it uses less digits than its factorization.

12023453140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86871 (or 86869 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 12023453140 its reverse (4135432021), we get a palindrome (16158885161).

The spelling of 12023453140 in words is "twelve billion, twenty-three million, four hundred fifty-three thousand, one hundred forty".