1231214231000 has 128 divisors (see below), whose sum is σ = 3265958404800. Its totient is φ = 430675660800.

The previous prime is 1231214230957. The next prime is 1231214231041. The reversal of 1231214231000 is 1324121321.

It is a super-2 number, since 2×1231214231000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2245337 + ... + 2739336.

Almost surely, 2^{1231214231000} is an apocalyptic number.

1231214231000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231214231000 is an abundant number, since it is smaller than the sum of its proper divisors (2034744173800).

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

1231214231000 is a wasteful number, since it uses less digits than its factorization.

1231214231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4984726 (or 4984712 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1231214231000 its reverse (1324121321), we get a palindrome (1232538352321).

The spelling of 1231214231000 in words is "one trillion, two hundred thirty-one billion, two hundred fourteen million, two hundred thirty-one thousand".