20341059491 has 4 divisors (see below), whose sum is σ = 20341544184. Its totient is φ = 20340574800.

The previous prime is 20341059481. The next prime is 20341059509. The reversal of 20341059491 is 19495014302.

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

It is a cyclic number.

It is not a de Polignac number, because 20341059491 - 2²² = 20336865187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20341059481) 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, 172730 + ... + 265551.

It is an arithmetic number, because the mean of its divisors is an integer number (5085386046).

Almost surely, 2^20341059491 is an apocalyptic number.

20341059491 is a deficient number, since it is larger than the sum of its proper divisors (484693).

20341059491 is an equidigital number, since it uses as much as digits as its factorization.

20341059491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484692.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 20341059491 in words is "twenty billion, three hundred forty-one million, fifty-nine thousand, four hundred ninety-one".