1231000322 has 16 divisors (see below), whose sum is σ = 1866393144. Its totient is φ = 608880000.

The previous prime is 1231000289. The next prime is 1231000349. The reversal of 1231000322 is 2230001321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1230676561 + 323761 = 35081^2 + 569^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1231000297 and 1231000306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345872 + ... + 349412.

Almost surely, 2^1231000322 is an apocalyptic number.

1231000322 is a deficient number, since it is larger than the sum of its proper divisors (635392822).

1231000322 is a wasteful number, since it uses less digits than its factorization.

1231000322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5365.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1231000322 is about 35085.6141744733. The cubic root of 1231000322 is about 1071.7316479711.

Adding to 1231000322 its reverse (2230001321), we get a palindrome (3461001643).

Subtracting 1231000322 from its reverse (2230001321), we obtain a palindrome (999000999).

The spelling of 1231000322 in words is "one billion, two hundred thirty-one million, three hundred twenty-two", and thus it is an aban number.