2023131221 has 8 divisors (see below), whose sum is σ = 2114165184. Its totient is φ = 1932353280.

The previous prime is 2023131203. The next prime is 2023131247. The reversal of 2023131221 is 1221313202.

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

It is not a de Polignac number, because 2023131221 - 2²² = 2018936917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2023131221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023131281) 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, 47756 + ... + 79541.

It is an arithmetic number, because the mean of its divisors is an integer number (264270648).

Almost surely, 2^2023131221 is an apocalyptic number.

It is an amenable number.

2023131221 is a deficient number, since it is larger than the sum of its proper divisors (91033963).

2023131221 is a wasteful number, since it uses less digits than its factorization.

2023131221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128011.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2023131221 is about 44979.2309960942. The cubic root of 2023131221 is about 1264.7596956401.

Adding to 2023131221 its reverse (1221313202), we get a palindrome (3244444423).

The spelling of 2023131221 in words is "two billion, twenty-three million, one hundred thirty-one thousand, two hundred twenty-one".