12131402131340 has 96 divisors (see below), whose sum is σ = 27032284984320. Its totient is φ = 4563887328000.

The previous prime is 12131402131337. The next prime is 12131402131357. The reversal of 12131402131340 is 4313120413121.

It is a super-2 number, since 2×12131402131340² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5644865 + ... + 7491815.

It is an arithmetic number, because the mean of its divisors is an integer number (281586301920).

Almost surely, 2^{12131402131340} is an apocalyptic number.

12131402131340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12131402131340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13516142492160).

12131402131340 is an abundant number, since it is smaller than the sum of its proper divisors (14900882852980).

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

12131402131340 is a wasteful number, since it uses less digits than its factorization.

12131402131340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847223 (or 1847221 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 12131402131340 its reverse (4313120413121), we get a palindrome (16444522544461).

The spelling of 12131402131340 in words is "twelve trillion, one hundred thirty-one billion, four hundred two million, one hundred thirty-one thousand, three hundred forty".