20301133505 has 8 divisors (see below), whose sum is σ = 24362886912. Its totient is φ = 16239889008.

The previous prime is 20301133493. The next prime is 20301133529. The reversal of 20301133505 is 50533110302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20301133505 - 2⁶ = 20301133441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33137 + ... + 204206.

It is an arithmetic number, because the mean of its divisors is an integer number (3045360864).

Almost surely, 2^20301133505 is an apocalyptic number.

It is an amenable number.

20301133505 is a deficient number, since it is larger than the sum of its proper divisors (4061753407).

20301133505 is a wasteful number, since it uses less digits than its factorization.

20301133505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254455.

The product of its (nonzero) digits is 1350, while the sum is 23.

Adding to 20301133505 its reverse (50533110302), we get a palindrome (70834243807).

The spelling of 20301133505 in words is "twenty billion, three hundred one million, one hundred thirty-three thousand, five hundred five".