12144254340 has 48 divisors (see below), whose sum is σ = 35100817920. Its totient is φ = 3134000640.

The previous prime is 12144254329. The next prime is 12144254393. The reversal of 12144254340 is 4345244121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12144254298 and 12144254307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3262725 + ... + 3266444.

It is an arithmetic number, because the mean of its divisors is an integer number (731267040).

Almost surely, 2^12144254340 is an apocalyptic number.

12144254340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12144254340 is an abundant number, since it is smaller than the sum of its proper divisors (22956563580).

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

12144254340 is a wasteful number, since it uses less digits than its factorization.

12144254340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6529212 (or 6529210 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 12144254340 its reverse (4345244121), we get a palindrome (16489498461).

The spelling of 12144254340 in words is "twelve billion, one hundred forty-four million, two hundred fifty-four thousand, three hundred forty".