20461331132299 has 4 divisors (see below), whose sum is σ = 20461343939064. Its totient is φ = 20461318325536.

The previous prime is 20461331132227. The next prime is 20461331132323. The reversal of 20461331132299 is 99223113316402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20461331132299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20461331132699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3596797 + ... + 7338910.

It is an arithmetic number, because the mean of its divisors is an integer number (5115335984766).

Almost surely, 2^{20461331132299} is an apocalyptic number.

20461331132299 is a deficient number, since it is larger than the sum of its proper divisors (12806765).

20461331132299 is a wasteful number, since it uses less digits than its factorization.

20461331132299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806764.

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 20461331132299 in words is "twenty trillion, four hundred sixty-one billion, three hundred thirty-one million, one hundred thirty-two thousand, two hundred ninety-nine".