1223232131233 has 16 divisors (see below), whose sum is σ = 1505302047360. Its totient is φ = 970083530496.

The previous prime is 1223232131213. The next prime is 1223232131239. The reversal of 1223232131233 is 3321312323221.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1223232131233 is a prime.

It is a super-3 number, since 3×1223232131233³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223232131239) 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, 87105366 + ... + 87119407.

It is an arithmetic number, because the mean of its divisors is an integer number (94081377960).

Almost surely, 2^{1223232131233} is an apocalyptic number.

It is an amenable number.

1223232131233 is a deficient number, since it is larger than the sum of its proper divisors (282069916127).

1223232131233 is a wasteful number, since it uses less digits than its factorization.

1223232131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174224856.

The product of its digits is 7776, while the sum is 28.

Adding to 1223232131233 its reverse (3321312323221), we get a palindrome (4544544454454).

The spelling of 1223232131233 in words is "one trillion, two hundred twenty-three billion, two hundred thirty-two million, one hundred thirty-one thousand, two hundred thirty-three".