12021793631 has 2 divisors, whose sum is σ = 12021793632. Its totient is φ = 12021793630.

The previous prime is 12021793613. The next prime is 12021793633. The reversal of 12021793631 is 13639712021.

12021793631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (12021793613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12021793631 - 2²² = 12017599327 is a prime.

It is a super-2 number, since 2×12021793631² (a number of 21 digits) contains 22 as substring.

Together with 12021793633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12021793591 and 12021793600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021793633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010896815 + 6010896816.

It is an arithmetic number, because the mean of its divisors is an integer number (6010896816).

Almost surely, 2^12021793631 is an apocalyptic number.

12021793631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021793631 is an equidigital number, since it uses as much as digits as its factorization.

12021793631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The spelling of 12021793631 in words is "twelve billion, twenty-one million, seven hundred ninety-three thousand, six hundred thirty-one".