1002231331 has 2 divisors, whose sum is σ = 1002231332. Its totient is φ = 1002231330.

The previous prime is 1002231313. The next prime is 1002231427. The reversal of 1002231331 is 1331322001.

Together with previous prime (1002231313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1002231331 - 2¹³ = 1002223139 is a prime.

It is a super-2 number, since 2×1002231331² = 2008935281676063122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1002231301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501115665 + 501115666.

It is an arithmetic number, because the mean of its divisors is an integer number (501115666).

Almost surely, 2^1002231331 is an apocalyptic number.

1002231331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002231331 is an equidigital number, since it uses as much as digits as its factorization.

1002231331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1002231331 is about 31658.0373838935. The cubic root of 1002231331 is about 1000.7432244805.

Adding to 1002231331 its reverse (1331322001), we get a palindrome (2333553332).

The spelling of 1002231331 in words is "one billion, two million, two hundred thirty-one thousand, three hundred thirty-one".