1002231311 has 4 divisors (see below), whose sum is σ = 1061186112. Its totient is φ = 943276512.

The previous prime is 1002231301. The next prime is 1002231313. The reversal of 1002231311 is 1131322001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002231311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002231313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29477375 + ... + 29477408.

It is an arithmetic number, because the mean of its divisors is an integer number (265296528).

Almost surely, 2^1002231311 is an apocalyptic number.

1002231311 is a deficient number, since it is larger than the sum of its proper divisors (58954801).

1002231311 is an equidigital number, since it uses as much as digits as its factorization.

1002231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58954800.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1002231311 is about 31658.0370680180. The cubic root of 1002231311 is about 1000.7432178238.

Adding to 1002231311 its reverse (1131322001), we get a palindrome (2133553312).

The spelling of 1002231311 in words is "one billion, two million, two hundred thirty-one thousand, three hundred eleven".