1022313231 has 10 divisors (see below), whose sum is σ = 1527159392. Its totient is φ = 681542100.

The previous prime is 1022313217. The next prime is 1022313239. The reversal of 1022313231 is 1323132201.

It is not a de Polignac number, because 1022313231 - 2⁵ = 1022313199 is a prime.

It is a super-3 number, since 3×1022313231³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022313239) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6310495 + ... + 6310656.

Almost surely, 2^1022313231 is an apocalyptic number.

1022313231 is a deficient number, since it is larger than the sum of its proper divisors (504846161).

1022313231 is an equidigital number, since it uses as much as digits as its factorization.

1022313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12621163 (or 12621154 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1022313231 is about 31973.6333718894. The cubic root of 1022313231 is about 1007.3830993592.

Adding to 1022313231 its reverse (1323132201), we get a palindrome (2345445432).

The spelling of 1022313231 in words is "one billion, twenty-two million, three hundred thirteen thousand, two hundred thirty-one".