20301133506 has 16 divisors (see below), whose sum is σ = 40633443264. Its totient is φ = 6761848464.

The previous prime is 20301133493. The next prime is 20301133529. The reversal of 20301133506 is 60533110302.

It is a happy 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, 1290541 + ... + 1306176.

It is an arithmetic number, because the mean of its divisors is an integer number (2539590204).

Almost surely, 2^20301133506 is an apocalyptic number.

20301133506 is an abundant number, since it is smaller than the sum of its proper divisors (20332309758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20301133506 is a wasteful number, since it uses less digits than its factorization.

20301133506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598025.

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 20301133506 its reverse (60533110302), we get a palindrome (80834243808).

The spelling of 20301133506 in words is "twenty billion, three hundred one million, one hundred thirty-three thousand, five hundred six".