1231322243000 has 64 divisors (see below), whose sum is σ = 2948300989920. Its totient is φ = 481074720000.

The previous prime is 1231322242999. The next prime is 1231322243027. The reversal of 1231322243000 is 3422231321.

It is a super-2 number, since 2×1231322243000² (a number of 25 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 15 ways as a sum of consecutive naturals, for example, 14274701 + ... + 14360700.

Almost surely, 2^{1231322243000} is an apocalyptic number.

1231322243000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231322243000 is an abundant number, since it is smaller than the sum of its proper divisors (1716978746920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231322243000 is a wasteful number, since it uses less digits than its factorization.

1231322243000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28635465 (or 28635451 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1231322243000 its reverse (3422231321), we get a palindrome (1234744474321).

The spelling of 1231322243000 in words is "one trillion, two hundred thirty-one billion, three hundred twenty-two million, two hundred forty-three thousand".