1312021233210 has 192 divisors, whose sum is σ = 3365694843264. Its totient is φ = 327071001600.

The previous prime is 1312021233163. The next prime is 1312021233221. The reversal of 1312021233210 is 123321202131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 196967280 + ... + 196973940.

It is an arithmetic number, because the mean of its divisors is an integer number (17529660642).

Almost surely, 2^{1312021233210} is an apocalyptic number.

1312021233210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312021233210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682847421632).

1312021233210 is an abundant number, since it is smaller than the sum of its proper divisors (2053673610054).

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

1312021233210 is a wasteful number, since it uses less digits than its factorization.

1312021233210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6977 (or 6948 counting only the distinct ones).

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

Adding to 1312021233210 its reverse (123321202131), we get a palindrome (1435342435341).

The spelling of 1312021233210 in words is "one trillion, three hundred twelve billion, twenty-one million, two hundred thirty-three thousand, two hundred ten".