1223132423312 has 10 divisors (see below), whose sum is σ = 2369819070198. Its totient is φ = 611566211648.

The previous prime is 1223132423263. The next prime is 1223132423323. The reversal of 1223132423312 is 2133242313221.

It can be written as a sum of positive squares in only one way, i.e., 1216309002496 + 6823420816 = 1102864^2 + 82604^2 .

It is a super-2 number, since 2×1223132423312² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38222888213 + ... + 38222888244.

Almost surely, 2^{1223132423312} is an apocalyptic number.

It is an amenable number.

1223132423312 is a deficient number, since it is larger than the sum of its proper divisors (1146686646886).

1223132423312 is an equidigital number, since it uses as much as digits as its factorization.

1223132423312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76445776465 (or 76445776459 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

Adding to 1223132423312 its reverse (2133242313221), we get a palindrome (3356374736533).

The spelling of 1223132423312 in words is "one trillion, two hundred twenty-three billion, one hundred thirty-two million, four hundred twenty-three thousand, three hundred twelve".