20301122031 has 8 divisors (see below), whose sum is σ = 27697655040. Its totient is φ = 13219335192.

The previous prime is 20301122003. The next prime is 20301122041. The reversal of 20301122031 is 13022110302.

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

It is not a de Polignac number, because 20301122031 - 2⁷ = 20301121903 is a prime.

It is a super-2 number, since 2×20301122031² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20301122031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301122041) 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, 78686391 + ... + 78686648.

It is an arithmetic number, because the mean of its divisors is an integer number (3462206880).

Almost surely, 2^20301122031 is an apocalyptic number.

20301122031 is a deficient number, since it is larger than the sum of its proper divisors (7396533009).

20301122031 is a wasteful number, since it uses less digits than its factorization.

20301122031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157373085.

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

Adding to 20301122031 its reverse (13022110302), we get a palindrome (33323232333).

The spelling of 20301122031 in words is "twenty billion, three hundred one million, one hundred twenty-two thousand, thirty-one".