23020220331 has 24 divisors (see below), whose sum is σ = 34490055600. Its totient is φ = 15343657632.

The previous prime is 23020220303. The next prime is 23020220339. The reversal of 23020220331 is 13302202032.

It is a happy number.

23020220331 is a `hidden beast` number, since 230 + 202 + 203 + 31 = 666.

It is not a de Polignac number, because 23020220331 - 2¹³ = 23020212139 is a prime.

It is a super-2 number, since 2×23020220331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23020220339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2266741 + ... + 2276873.

It is an arithmetic number, because the mean of its divisors is an integer number (1437085650).

Almost surely, 2^23020220331 is an apocalyptic number.

23020220331 is a deficient number, since it is larger than the sum of its proper divisors (11469835269).

23020220331 is an equidigital number, since it uses as much as digits as its factorization.

23020220331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19497 (or 19485 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23020220331 its reverse (13302202032), we get a palindrome (36322422363).

The spelling of 23020220331 in words is "twenty-three billion, twenty million, two hundred twenty thousand, three hundred thirty-one".