1321213133111 has 8 divisors (see below), whose sum is σ = 1321649952960. Its totient is φ = 1320776391168.

The previous prime is 1321213133101. The next prime is 1321213133113. The reversal of 1321213133111 is 1113313121231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321213133111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321213133113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61478210 + ... + 61499696.

It is an arithmetic number, because the mean of its divisors is an integer number (165206244120).

Almost surely, 2^{1321213133111} is an apocalyptic number.

1321213133111 is a deficient number, since it is larger than the sum of its proper divisors (436819849).

1321213133111 is a wasteful number, since it uses less digits than its factorization.

1321213133111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38953.

The product of its digits is 324, while the sum is 23.

Adding to 1321213133111 its reverse (1113313121231), we get a palindrome (2434526254342).

The spelling of 1321213133111 in words is "one trillion, three hundred twenty-one billion, two hundred thirteen million, one hundred thirty-three thousand, one hundred eleven".