12111312012402 has 8 divisors (see below), whose sum is σ = 24222624024816. Its totient is φ = 4037104004132.

The previous prime is 12111312012361. The next prime is 12111312012407. The reversal of 12111312012402 is 20421021311121.

It is a sphenic number, since it is the product of 3 distinct primes.

12111312012402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12111312012407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009276001028 + ... + 1009276001039.

It is an arithmetic number, because the mean of its divisors is an integer number (3027828003102).

Almost surely, 2^{12111312012402} is an apocalyptic number.

12111312012402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12111312012402 is a wasteful number, since it uses less digits than its factorization.

12111312012402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018552002072.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 12111312012402 its reverse (20421021311121), we get a palindrome (32532333323523).

The spelling of 12111312012402 in words is "twelve trillion, one hundred eleven billion, three hundred twelve million, twelve thousand, four hundred two".