1231002223000 has 128 divisors (see below), whose sum is σ = 3151426824000. Its totient is φ = 446353152000.

The previous prime is 1231002222953. The next prime is 1231002223001. The reversal of 1231002223000 is 3222001321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231002223001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3678672 + ... + 3999328.

Almost surely, 2^{1231002223000} is an apocalyptic number.

1231002223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231002223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1575713412000).

1231002223000 is an abundant number, since it is smaller than the sum of its proper divisors (1920424601000).

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

1231002223000 is a wasteful number, since it uses less digits than its factorization.

1231002223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321038 (or 321024 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1231002223000 its reverse (3222001321), we get a palindrome (1234224224321).

The spelling of 1231002223000 in words is "one trillion, two hundred thirty-one billion, two million, two hundred twenty-three thousand".