12455121432312 has 192 divisors, whose sum is σ = 37317767760000. Its totient is φ = 3727917914112.

The previous prime is 12455121432301. The next prime is 12455121432367. The reversal of 12455121432312 is 21323412155421.

12455121432312 is a `hidden beast` number, since 1 + 24 + 55 + 121 + 432 + 31 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160965489 + ... + 161042847.

It is an arithmetic number, because the mean of its divisors is an integer number (194363373750).

Almost surely, 2^{12455121432312} is an apocalyptic number.

12455121432312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12455121432312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18658883880000).

12455121432312 is an abundant number, since it is smaller than the sum of its proper divisors (24862646327688).

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

12455121432312 is a wasteful number, since it uses less digits than its factorization.

12455121432312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82070 (or 82063 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 12455121432312 its reverse (21323412155421), we get a palindrome (33778533587733).

The spelling of 12455121432312 in words is "twelve trillion, four hundred fifty-five billion, one hundred twenty-one million, four hundred thirty-two thousand, three hundred twelve".