21325131313099 has 2 divisors, whose sum is σ = 21325131313100. Its totient is φ = 21325131313098.

The previous prime is 21325131313081. The next prime is 21325131313117. The reversal of 21325131313099 is 99031313152312.

It is a balanced prime because it is at equal distance from previous prime (21325131313081) and next prime (21325131313117).

It is a cyclic number.

It is not a de Polignac number, because 21325131313099 - 2²¹ = 21325129215947 is a prime.

It is a super-2 number, since 2×21325131313099² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21325131313019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10662565656549 + 10662565656550.

It is an arithmetic number, because the mean of its divisors is an integer number (10662565656550).

Almost surely, 2^{21325131313099} is an apocalyptic number.

21325131313099 is a deficient number, since it is larger than the sum of its proper divisors (1).

21325131313099 is an equidigital number, since it uses as much as digits as its factorization.

21325131313099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131220, while the sum is 43.

The spelling of 21325131313099 in words is "twenty-one trillion, three hundred twenty-five billion, one hundred thirty-one million, three hundred thirteen thousand, ninety-nine".