1223443403331 has 16 divisors (see below), whose sum is σ = 1634051209344. Its totient is φ = 814232510784.

The previous prime is 1223443403321. The next prime is 1223443403341. The reversal of 1223443403331 is 1333043443221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1223443403321) and next prime (1223443403341).

It is not a de Polignac number, because 1223443403331 - 2¹⁴ = 1223443386947 is a prime.

It is a super-2 number, since 2×1223443403331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223443403292 and 1223443403301.

It is not an unprimeable number, because it can be changed into a prime (1223443403321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26488800 + ... + 26534946.

It is an arithmetic number, because the mean of its divisors is an integer number (102128200584).

Almost surely, 2^{1223443403331} is an apocalyptic number.

1223443403331 is a deficient number, since it is larger than the sum of its proper divisors (410607806013).

1223443403331 is a wasteful number, since it uses less digits than its factorization.

1223443403331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61090.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 1223443403331 its reverse (1333043443221), we get a palindrome (2556486846552).

The spelling of 1223443403331 in words is "one trillion, two hundred twenty-three billion, four hundred forty-three million, four hundred three thousand, three hundred thirty-one".