1230233111312 has 20 divisors (see below), whose sum is σ = 2487210421440. Its totient is φ = 588372357408.

The previous prime is 1230233111311. The next prime is 1230233111333. The reversal of 1230233111312 is 2131113320321.

It is a super-2 number, since 2×1230233111312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1230233111311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1671512012 + ... + 1671512747.

It is an arithmetic number, because the mean of its divisors is an integer number (124360521072).

Almost surely, 2^{1230233111312} is an apocalyptic number.

It is an amenable number.

1230233111312 is an abundant number, since it is smaller than the sum of its proper divisors (1256977310128).

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

1230233111312 is a wasteful number, since it uses less digits than its factorization.

1230233111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343024790 (or 3343024784 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1230233111312 its reverse (2131113320321), we get a palindrome (3361346431633).

The spelling of 1230233111312 in words is "one trillion, two hundred thirty billion, two hundred thirty-three million, one hundred eleven thousand, three hundred twelve".