12021303131321 has 16 divisors (see below), whose sum is σ = 13893279703488. Its totient is φ = 10279895616000.

The previous prime is 12021303131231. The next prime is 12021303131323. The reversal of 12021303131321 is 12313130312021.

It is a cyclic number.

It is not a de Polignac number, because 12021303131321 - 2³⁸ = 11746425224377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12021303131323) 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, 17510255 + ... + 18183828.

It is an arithmetic number, because the mean of its divisors is an integer number (868329981468).

Almost surely, 2^{12021303131321} is an apocalyptic number.

12021303131321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12021303131321 is a deficient number, since it is larger than the sum of its proper divisors (1871976572167).

12021303131321 is a wasteful number, since it uses less digits than its factorization.

12021303131321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35695912.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12021303131321 its reverse (12313130312021), we get a palindrome (24334433443342).

The spelling of 12021303131321 in words is "twelve trillion, twenty-one billion, three hundred three million, one hundred thirty-one thousand, three hundred twenty-one".