12002531454 has 128 divisors (see below), whose sum is σ = 29942784000. Its totient is φ = 3545233920.

The previous prime is 12002531419. The next prime is 12002531501. The reversal of 12002531454 is 45413520021.

12002531454 is a `hidden beast` number, since 1 + 200 + 2 + 5 + 3 + 1 + 454 = 666.

12002531454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12002531454² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1047247 + ... + 1058645.

It is an arithmetic number, because the mean of its divisors is an integer number (233928000).

Almost surely, 2^12002531454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12002531454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14971392000).

12002531454 is an abundant number, since it is smaller than the sum of its proper divisors (17940252546).

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

12002531454 is a wasteful number, since it uses less digits than its factorization.

12002531454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11495 (or 11489 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 12002531454 in words is "twelve billion, two million, five hundred thirty-one thousand, four hundred fifty-four".