1323231210012 has 48 divisors (see below), whose sum is σ = 3230816494752. Its totient is φ = 421058776320.

The previous prime is 1323231209969. The next prime is 1323231210127. The reversal of 1323231210012 is 2100121323231.

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, 28092039 + ... + 28139102.

It is an arithmetic number, because the mean of its divisors is an integer number (67308676974).

Almost surely, 2^{1323231210012} is an apocalyptic number.

1323231210012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323231210012 is an abundant number, since it is smaller than the sum of its proper divisors (1907585284740).

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

1323231210012 is a wasteful number, since it uses less digits than its factorization.

1323231210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56231238 (or 56231236 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1323231210012 its reverse (2100121323231), we get a palindrome (3423352533243).

The spelling of 1323231210012 in words is "one trillion, three hundred twenty-three billion, two hundred thirty-one million, two hundred ten thousand, twelve".