13031032004021 has 2 divisors, whose sum is σ = 13031032004022. Its totient is φ = 13031032004020.

The previous prime is 13031032003973. The next prime is 13031032004041. The reversal of 13031032004021 is 12040023013031.

It is an a-pointer prime, because the next prime (13031032004041) can be obtained adding 13031032004021 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10083870111121 + 2947161892900 = 3175511^2 + 1716730^2 .

It is a cyclic number.

It is not a de Polignac number, because 13031032004021 - 2¹⁸ = 13031031741877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13031032003984 and 13031032004002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13031032004041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6515516002010 + 6515516002011.

It is an arithmetic number, because the mean of its divisors is an integer number (6515516002011).

Almost surely, 2^{13031032004021} is an apocalyptic number.

It is an amenable number.

13031032004021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13031032004021 is an equidigital number, since it uses as much as digits as its factorization.

13031032004021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13031032004021 its reverse (12040023013031), we get a palindrome (25071055017052).

The spelling of 13031032004021 in words is "thirteen trillion, thirty-one billion, thirty-two million, four thousand, twenty-one".