12131236426102 has 4 divisors (see below), whose sum is σ = 18196854639156. Its totient is φ = 6065618213050.

The previous prime is 12131236426097. The next prime is 12131236426139. The reversal of 12131236426102 is 20162463213121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3032809106524 + ... + 3032809106527.

It is an arithmetic number, because the mean of its divisors is an integer number (4549213659789).

Almost surely, 2^{12131236426102} is an apocalyptic number.

12131236426102 is a deficient number, since it is larger than the sum of its proper divisors (6065618213054).

12131236426102 is an equidigital number, since it uses as much as digits as its factorization.

12131236426102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065618213053.

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 12131236426102 its reverse (20162463213121), we get a palindrome (32293699639223).

The spelling of 12131236426102 in words is "twelve trillion, one hundred thirty-one billion, two hundred thirty-six million, four hundred twenty-six thousand, one hundred two".