20301113021 has 12 divisors (see below), whose sum is σ = 23650501788. Its totient is φ = 17375222592.

The previous prime is 20301112969. The next prime is 20301113033. The reversal of 20301113021 is 12031110302.

It can be written as a sum of positive squares in 2 ways, for example, as 19751210521 + 549902500 = 140539^2 + 23450^2 .

It is not a de Polignac number, because 20301113021 - 2²² = 20296918717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301112987 and 20301113005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301113051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272816 + ... + 339161.

It is an arithmetic number, because the mean of its divisors is an integer number (1970875149).

Almost surely, 2^20301113021 is an apocalyptic number.

It is an amenable number.

20301113021 is a deficient number, since it is larger than the sum of its proper divisors (3349388767).

20301113021 is an equidigital number, since it uses as much as digits as its factorization.

20301113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612668 (or 612661 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20301113021 its reverse (12031110302), we get a palindrome (32332223323).

The spelling of 20301113021 in words is "twenty billion, three hundred one million, one hundred thirteen thousand, twenty-one".