1233113123213 has 8 divisors (see below), whose sum is σ = 1253487211416. Its totient is φ = 1212744168000.

The previous prime is 1233113123201. The next prime is 1233113123269. The reversal of 1233113123213 is 3123213113321.

It can be written as a sum of positive squares in 4 ways, for example, as 19773421924 + 1213339701289 = 140618^2 + 1101517^2 .

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 1233113123213 - 2³⁶ = 1164393646477 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 (1233113123273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797306 + ... + 1761227.

It is an arithmetic number, because the mean of its divisors is an integer number (156685901427).

Almost surely, 2^{1233113123213} is an apocalyptic number.

It is an amenable number.

1233113123213 is a deficient number, since it is larger than the sum of its proper divisors (20374088203).

1233113123213 is an equidigital number, since it uses as much as digits as its factorization.

1233113123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566495.

The product of its digits is 1944, while the sum is 26.

Adding to 1233113123213 its reverse (3123213113321), we get a palindrome (4356326236534).

The spelling of 1233113123213 in words is "one trillion, two hundred thirty-three billion, one hundred thirteen million, one hundred twenty-three thousand, two hundred thirteen".