1231223032233 has 48 divisors (see below), whose sum is σ = 1915688361600. Its totient is φ = 759150696960.

The previous prime is 1231223032181. The next prime is 1231223032297. The reversal of 1231223032233 is 3322303221321.

1231223032233 is a `hidden beast` number, since 1 + 2 + 3 + 122 + 303 + 2 + 233 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1231223032233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1231223032197 and 1231223032206.

It is not an unprimeable number, because it can be changed into a prime (1231223032133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25169923 + ... + 25218791.

It is an arithmetic number, because the mean of its divisors is an integer number (39910174200).

Almost surely, 2^{1231223032233} is an apocalyptic number.

It is an amenable number.

1231223032233 is a deficient number, since it is larger than the sum of its proper divisors (684465329367).

1231223032233 is a wasteful number, since it uses less digits than its factorization.

1231223032233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51742 (or 51739 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 1231223032233 its reverse (3322303221321), we get a palindrome (4553526253554).

The spelling of 1231223032233 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-three million, thirty-two thousand, two hundred thirty-three".