1323212333131 has 4 divisors (see below), whose sum is σ = 1424997897232. Its totient is φ = 1221426769032.

The previous prime is 1323212333129. The next prime is 1323212333147. The reversal of 1323212333131 is 1313332123231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1323212333131 - 2¹ = 1323212333129 is a prime.

It is a super-2 number, since 2×1323212333131² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1323212333131.

It is not an unprimeable number, because it can be changed into a prime (1323212333111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50892782031 + ... + 50892782056.

It is an arithmetic number, because the mean of its divisors is an integer number (356249474308).

Almost surely, 2^{1323212333131} is an apocalyptic number.

1323212333131 is a deficient number, since it is larger than the sum of its proper divisors (101785564101).

1323212333131 is a wasteful number, since it uses less digits than its factorization.

1323212333131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101785564100.

The product of its digits is 5832, while the sum is 28.

Adding to 1323212333131 its reverse (1313332123231), we get a palindrome (2636544456362).

The spelling of 1323212333131 in words is "one trillion, three hundred twenty-three billion, two hundred twelve million, three hundred thirty-three thousand, one hundred thirty-one".