12031021032139 has 2 divisors, whose sum is σ = 12031021032140. Its totient is φ = 12031021032138.

The previous prime is 12031021032109. The next prime is 12031021032161. The reversal of 12031021032139 is 93123012013021.

It is a strong prime.

It is an emirp because it is prime and its reverse (93123012013021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031021032139 is a prime.

It is not a weakly prime, because it can be changed into another prime (12031021032109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015510516069 + 6015510516070.

It is an arithmetic number, because the mean of its divisors is an integer number (6015510516070).

Almost surely, 2^{12031021032139} is an apocalyptic number.

12031021032139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031021032139 is an equidigital number, since it uses as much as digits as its factorization.

12031021032139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 12031021032139 in words is "twelve trillion, thirty-one billion, twenty-one million, thirty-two thousand, one hundred thirty-nine".