2231023331 has 4 divisors (see below), whose sum is σ = 2307955200. Its totient is φ = 2154091464.

The previous prime is 2231023321. The next prime is 2231023357. The reversal of 2231023331 is 1333201322.

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

It is not a de Polignac number, because 2231023331 - 2¹⁰ = 2231022307 is a prime.

It is a super-3 number, since 3×2231023331³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231023321) 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, 38465891 + ... + 38465948.

It is an arithmetic number, because the mean of its divisors is an integer number (576988800).

Almost surely, 2^2231023331 is an apocalyptic number.

2231023331 is a deficient number, since it is larger than the sum of its proper divisors (76931869).

2231023331 is an equidigital number, since it uses as much as digits as its factorization.

2231023331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76931868.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 2231023331 is about 47233.7096891616. The cubic root of 2231023331 is about 1306.6763698505.

Adding to 2231023331 its reverse (1333201322), we get a palindrome (3564224653).

The spelling of 2231023331 in words is "two billion, two hundred thirty-one million, twenty-three thousand, three hundred thirty-one".