20223012331 has 4 divisors (see below), whose sum is σ = 20242976832. Its totient is φ = 20203047832.

The previous prime is 20223012301. The next prime is 20223012353. The reversal of 20223012331 is 13321032202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20223012331 - 2⁷ = 20223012203 is a prime.

It is a super-2 number, since 2×20223012331² (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 = 20223012299 and 20223012308.

It is not an unprimeable number, because it can be changed into a prime (20223012301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9980731 + ... + 9982756.

It is an arithmetic number, because the mean of its divisors is an integer number (5060744208).

Almost surely, 2^20223012331 is an apocalyptic number.

20223012331 is a deficient number, since it is larger than the sum of its proper divisors (19964501).

20223012331 is a wasteful number, since it uses less digits than its factorization.

20223012331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19964500.

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

Adding to 20223012331 its reverse (13321032202), we get a palindrome (33544044533).

The spelling of 20223012331 in words is "twenty billion, two hundred twenty-three million, twelve thousand, three hundred thirty-one".