12031021311213 has 8 divisors (see below), whose sum is σ = 16052977511776. Its totient is φ = 8014872992400.

The previous prime is 12031021311173. The next prime is 12031021311227. The reversal of 12031021311213 is 31211312013021.

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

It is not a de Polignac number, because 12031021311213 - 2²⁴ = 12031004533997 is a prime.

It is a super-2 number, since 2×12031021311213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12031021311213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031021311013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1451965603 + ... + 1451973888.

It is an arithmetic number, because the mean of its divisors is an integer number (2006622188972).

Almost surely, 2^{12031021311213} is an apocalyptic number.

It is an amenable number.

12031021311213 is a deficient number, since it is larger than the sum of its proper divisors (4021956200563).

12031021311213 is a wasteful number, since it uses less digits than its factorization.

12031021311213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903940875.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12031021311213 its reverse (31211312013021), we get a palindrome (43242333324234).

The spelling of 12031021311213 in words is "twelve trillion, thirty-one billion, twenty-one million, three hundred eleven thousand, two hundred thirteen".