1230001133212 has 48 divisors (see below), whose sum is σ = 2399514243840. Its totient is φ = 548258879232.

The previous prime is 1230001133209. The next prime is 1230001133213. The reversal of 1230001133212 is 2123311000321.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1230001133212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230001133213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7180263 + ... + 7349569.

It is an arithmetic number, because the mean of its divisors is an integer number (49989880080).

Almost surely, 2^{1230001133212} is an apocalyptic number.

It is an amenable number.

1230001133212 is a deficient number, since it is larger than the sum of its proper divisors (1169513110628).

1230001133212 is a wasteful number, since it uses less digits than its factorization.

1230001133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174970 (or 174968 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1230001133212 its reverse (2123311000321), we get a palindrome (3353312133533).

The spelling of 1230001133212 in words is "one trillion, two hundred thirty billion, one million, one hundred thirty-three thousand, two hundred twelve".