12140541402 has 64 divisors (see below), whose sum is σ = 26820218880. Its totient is φ = 3633076800.

The previous prime is 12140541383. The next prime is 12140541403. The reversal of 12140541402 is 20414504121.

It is a super-2 number, since 2×12140541402² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12140541403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2642127 + ... + 2646717.

It is an arithmetic number, because the mean of its divisors is an integer number (419065920).

Almost surely, 2^12140541402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12140541402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13410109440).

12140541402 is an abundant number, since it is smaller than the sum of its proper divisors (14679677478).

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

12140541402 is a wasteful number, since it uses less digits than its factorization.

12140541402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5099.

The product of its (nonzero) digits is 1280, while the sum is 24.

The spelling of 12140541402 in words is "twelve billion, one hundred forty million, five hundred forty-one thousand, four hundred two".