12315501270402 has 96 divisors (see below), whose sum is σ = 28132315557696. Its totient is φ = 3564237283200.

The previous prime is 12315501270367. The next prime is 12315501270403. The reversal of 12315501270402 is 20407210551321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12315501270403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22528752 + ... + 23068932.

It is an arithmetic number, because the mean of its divisors is an integer number (293044953726).

Almost surely, 2^{12315501270402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12315501270402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14066157778848).

12315501270402 is an abundant number, since it is smaller than the sum of its proper divisors (15816814287294).

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

12315501270402 is a wasteful number, since it uses less digits than its factorization.

12315501270402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540896 (or 540873 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 12315501270402 in words is "twelve trillion, three hundred fifteen billion, five hundred one million, two hundred seventy thousand, four hundred two".