231000322005 has 48 divisors (see below), whose sum is σ = 421228080000. Its totient is φ = 116935717248.

The previous prime is 231000321997. The next prime is 231000322037. The reversal of 231000322005 is 500223000132.

It is not a de Polignac number, because 231000322005 - 2³ = 231000321997 is a prime.

It is a super-2 number, since 2×231000322005² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1423105 + ... + 1577094.

It is an arithmetic number, because the mean of its divisors is an integer number (8775585000).

Almost surely, 2^231000322005 is an apocalyptic number.

It is an amenable number.

231000322005 is a deficient number, since it is larger than the sum of its proper divisors (190227757995).

231000322005 is a wasteful number, since it uses less digits than its factorization.

231000322005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000298 (or 3000295 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 231000322005 its reverse (500223000132), we get a palindrome (731223322137).

The spelling of 231000322005 in words is "two hundred thirty-one billion, three hundred twenty-two thousand, five".