12010131321 has 16 divisors (see below), whose sum is σ = 17502432768. Its totient is φ = 7292678400.

The previous prime is 12010131317. The next prime is 12010131337. The reversal of 12010131321 is 12313101021.

It is a happy number.

It is not a de Polignac number, because 12010131321 - 2² = 12010131317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12010131321.

It is not an unprimeable number, because it can be changed into a prime (12010131821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3796690 + ... + 3799851.

It is an arithmetic number, because the mean of its divisors is an integer number (1093902048).

Almost surely, 2^12010131321 is an apocalyptic number.

It is an amenable number.

12010131321 is a deficient number, since it is larger than the sum of its proper divisors (5492301447).

12010131321 is a wasteful number, since it uses less digits than its factorization.

12010131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7596592.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12010131321 its reverse (12313101021), we get a palindrome (24323232342).

The spelling of 12010131321 in words is "twelve billion, ten million, one hundred thirty-one thousand, three hundred twenty-one".