1233123204413 has 4 divisors (see below), whose sum is σ = 1233142309728. Its totient is φ = 1233104099100.

The previous prime is 1233123204409. The next prime is 1233123204451. The reversal of 1233123204413 is 3144023213321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1233123204413 - 2² = 1233123204409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233123207413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9455513 + ... + 9585038.

It is an arithmetic number, because the mean of its divisors is an integer number (308285577432).

Almost surely, 2^{1233123204413} is an apocalyptic number.

It is an amenable number.

1233123204413 is a deficient number, since it is larger than the sum of its proper divisors (19105315).

1233123204413 is an equidigital number, since it uses as much as digits as its factorization.

1233123204413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19105314.

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

Adding to 1233123204413 its reverse (3144023213321), we get a palindrome (4377146417734).

The spelling of 1233123204413 in words is "one trillion, two hundred thirty-three billion, one hundred twenty-three million, two hundred four thousand, four hundred thirteen".