123033331013 has 4 divisors (see below), whose sum is σ = 123085224288. Its totient is φ = 122981437740.

The previous prime is 123033330989. The next prime is 123033331021. The reversal of 123033331013 is 310133330321.

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 123033331013 - 2¹⁰ = 123033329989 is a prime.

It is a super-3 number, since 3×123033331013³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123033331013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123033331513) 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 3 ways as a sum of consecutive naturals, for example, 25943081 + ... + 25947822.

It is an arithmetic number, because the mean of its divisors is an integer number (30771306072).

Almost surely, 2^123033331013 is an apocalyptic number.

It is an amenable number.

123033331013 is a deficient number, since it is larger than the sum of its proper divisors (51893275).

123033331013 is an equidigital number, since it uses as much as digits as its factorization.

123033331013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51893274.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 123033331013 its reverse (310133330321), we get a palindrome (433166661334).

The spelling of 123033331013 in words is "one hundred twenty-three billion, thirty-three million, three hundred thirty-one thousand, thirteen".