20301220311 has 8 divisors (see below), whose sum is σ = 27372432240. Its totient is φ = 13382077632.

The previous prime is 20301220283. The next prime is 20301220343. The reversal of 20301220311 is 11302210302.

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

It is not a de Polignac number, because 20301220311 - 2⁷ = 20301220183 is a prime.

It is a super-2 number, since 2×20301220311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301220711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38017000 + ... + 38017533.

It is an arithmetic number, because the mean of its divisors is an integer number (3421554030).

Almost surely, 2^20301220311 is an apocalyptic number.

20301220311 is a deficient number, since it is larger than the sum of its proper divisors (7071211929).

20301220311 is an equidigital number, since it uses as much as digits as its factorization.

20301220311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76034625.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20301220311 its reverse (11302210302), we get a palindrome (31603430613).

The spelling of 20301220311 in words is "twenty billion, three hundred one million, two hundred twenty thousand, three hundred eleven".