20301222331 has 16 divisors (see below), whose sum is σ = 22093823808. Its totient is φ = 18542592000.

The previous prime is 20301222329. The next prime is 20301222377. The reversal of 20301222331 is 13322210302.

It is a cyclic number.

It is not a de Polignac number, because 20301222331 - 2¹ = 20301222329 is a prime.

It is a super-2 number, since 2×20301222331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301222299 and 20301222308.

It is not an unprimeable number, because it can be changed into a prime (20301232331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484371 + ... + 524611.

It is an arithmetic number, because the mean of its divisors is an integer number (1380863988).

Almost surely, 2^20301222331 is an apocalyptic number.

20301222331 is a deficient number, since it is larger than the sum of its proper divisors (1792601477).

20301222331 is a wasteful number, since it uses less digits than its factorization.

20301222331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40662.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20301222331 its reverse (13322210302), we get a palindrome (33623432633).

The spelling of 20301222331 in words is "twenty billion, three hundred one million, two hundred twenty-two thousand, three hundred thirty-one".