1212112323032 has 64 divisors (see below), whose sum is σ = 2557198183680. Its totient is φ = 534432362112.

The previous prime is 1212112323001. The next prime is 1212112323073. The reversal of 1212112323032 is 2303232112121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1212112322989 and 1212112323007.

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, 1560563 + ... + 2204445.

It is an arithmetic number, because the mean of its divisors is an integer number (39956221620).

Almost surely, 2^{1212112323032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212112323032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1278599091840).

1212112323032 is an abundant number, since it is smaller than the sum of its proper divisors (1345085860648).

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

1212112323032 is a wasteful number, since it uses less digits than its factorization.

1212112323032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644712 (or 644708 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1212112323032 its reverse (2303232112121), we get a palindrome (3515344435153).

The spelling of 1212112323032 in words is "one trillion, two hundred twelve billion, one hundred twelve million, three hundred twenty-three thousand, thirty-two".