12023314540 has 24 divisors (see below), whose sum is σ = 25433265312. Its totient is φ = 4774220160.

The previous prime is 12023314531. The next prime is 12023314543. The reversal of 12023314540 is 4541332021.

It is not an unprimeable number, because it can be changed into a prime (12023314543) 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, 2191296 + ... + 2196775.

It is an arithmetic number, because the mean of its divisors is an integer number (1059719388).

Almost surely, 2^12023314540 is an apocalyptic number.

12023314540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12023314540 is an abundant number, since it is smaller than the sum of its proper divisors (13409950772).

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

12023314540 is a wasteful number, since it uses less digits than its factorization.

12023314540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388217 (or 4388215 counting only the distinct ones).

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

Adding to 12023314540 its reverse (4541332021), we get a palindrome (16564646561).

The spelling of 12023314540 in words is "twelve billion, twenty-three million, three hundred fourteen thousand, five hundred forty".