1223320211031 has 8 divisors (see below), whose sum is σ = 1631107321200. Its totient is φ = 815539954112.

The previous prime is 1223320210961. The next prime is 1223320211041. The reversal of 1223320211031 is 1301120233221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223320211031 - 2¹⁵ = 1223320178263 is a prime.

It is a super-2 number, since 2×1223320211031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223320210989 and 1223320211007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223320211041) 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, 1281240 + ... + 2021933.

It is an arithmetic number, because the mean of its divisors is an integer number (203888415150).

Almost surely, 2^{1223320211031} is an apocalyptic number.

1223320211031 is a deficient number, since it is larger than the sum of its proper divisors (407787110169).

1223320211031 is a wasteful number, since it uses less digits than its factorization.

1223320211031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426625.

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

Adding to 1223320211031 its reverse (1301120233221), we get a palindrome (2524440444252).

The spelling of 1223320211031 in words is "one trillion, two hundred twenty-three billion, three hundred twenty million, two hundred eleven thousand, thirty-one".