12152323140 has 48 divisors (see below), whose sum is σ = 34492633728. Its totient is φ = 3196226304.

The previous prime is 12152323121. The next prime is 12152323187. The reversal of 12152323140 is 4132325121.

It is a self number, because there is not a number n which added to its sum of digits gives 12152323140.

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, 1382872 + ... + 1391631.

It is an arithmetic number, because the mean of its divisors is an integer number (718596536).

Almost surely, 2^12152323140 is an apocalyptic number.

12152323140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12152323140 is an abundant number, since it is smaller than the sum of its proper divisors (22340310588).

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

12152323140 is a wasteful number, since it uses less digits than its factorization.

12152323140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774588 (or 2774586 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 12152323140 its reverse (4132325121), we get a palindrome (16284648261).

The spelling of 12152323140 in words is "twelve billion, one hundred fifty-two million, three hundred twenty-three thousand, one hundred forty".