13021032091 has 2 divisors, whose sum is σ = 13021032092. Its totient is φ = 13021032090.

The previous prime is 13021032077. The next prime is 13021032127. The reversal of 13021032091 is 19023012031.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13021032091 is a prime.

It is not a weakly prime, because it can be changed into another prime (13021032391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510516045 + 6510516046.

It is an arithmetic number, because the mean of its divisors is an integer number (6510516046).

Almost surely, 2^13021032091 is an apocalyptic number.

13021032091 is a deficient number, since it is larger than the sum of its proper divisors (1).

13021032091 is an equidigital number, since it uses as much as digits as its factorization.

13021032091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 13021032091 in words is "thirteen billion, twenty-one million, thirty-two thousand, ninety-one".