12154300112240 has 80 divisors (see below), whose sum is σ = 33199088309856. Its totient is φ = 4079765068800.

The previous prime is 12154300112221. The next prime is 12154300112263. The reversal of 12154300112240 is 4221100345121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×12154300112240² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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, 531207971 + ... + 531230850.

Almost surely, 2^{12154300112240} is an apocalyptic number.

12154300112240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12154300112240 is an abundant number, since it is smaller than the sum of its proper divisors (21044788197616).

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

12154300112240 is a wasteful number, since it uses less digits than its factorization.

12154300112240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062438858 (or 1062438852 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 12154300112240 its reverse (4221100345121), we get a palindrome (16375400457361).

The spelling of 12154300112240 in words is "twelve trillion, one hundred fifty-four billion, three hundred million, one hundred twelve thousand, two hundred forty".