20030231223331 has 16 divisors (see below), whose sum is σ = 23011920764928. Its totient is φ = 17078601607200.

The previous prime is 20030231223329. The next prime is 20030231223349. The reversal of 20030231223331 is 13332213203002.

It is not a de Polignac number, because 20030231223331 - 2¹ = 20030231223329 is a prime.

It is a super-2 number, since 2×20030231223331² (a number of 27 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 = 20030231223296 and 20030231223305.

It is not an unprimeable number, because it can be changed into a prime (20030231223391) 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, 159295521 + ... + 159421213.

It is an arithmetic number, because the mean of its divisors is an integer number (1438245047808).

Almost surely, 2^{20030231223331} is an apocalyptic number.

20030231223331 is a deficient number, since it is larger than the sum of its proper divisors (2981689541597).

20030231223331 is a wasteful number, since it uses less digits than its factorization.

20030231223331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245082.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20030231223331 its reverse (13332213203002), we get a palindrome (33362444426333).

The spelling of 20030231223331 in words is "twenty trillion, thirty billion, two hundred thirty-one million, two hundred twenty-three thousand, three hundred thirty-one".