1321130133212 has 12 divisors (see below), whose sum is σ = 2314368616560. Its totient is φ = 659881957056.

The previous prime is 1321130133209. The next prime is 1321130133221. The reversal of 1321130133212 is 2123310311231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170773037 + ... + 170780772.

It is an arithmetic number, because the mean of its divisors is an integer number (192864051380).

Almost surely, 2^{1321130133212} is an apocalyptic number.

It is an amenable number.

1321130133212 is a deficient number, since it is larger than the sum of its proper divisors (993238483348).

1321130133212 is a wasteful number, since it uses less digits than its factorization.

1321130133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341554780 (or 341554778 counting only the distinct ones).

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

Adding to 1321130133212 its reverse (2123310311231), we get a palindrome (3444440444443).

The spelling of 1321130133212 in words is "one trillion, three hundred twenty-one billion, one hundred thirty million, one hundred thirty-three thousand, two hundred twelve".