123899833007 has 4 divisors (see below), whose sum is σ = 131188058496. Its totient is φ = 116611607520.

The previous prime is 123899832989. The next prime is 123899833021. The reversal of 123899833007 is 700338998321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123899833007 - 2¹² = 123899828911 is a prime.

It is a super-3 number, since 3×123899833007³ (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 123899833007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123899833087) 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, 3644112719 + ... + 3644112752.

It is an arithmetic number, because the mean of its divisors is an integer number (32797014624).

Almost surely, 2^123899833007 is an apocalyptic number.

123899833007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

123899833007 is a deficient number, since it is larger than the sum of its proper divisors (7288225489).

123899833007 is an equidigital number, since it uses as much as digits as its factorization.

123899833007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7288225488.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 123899833007 in words is "one hundred twenty-three billion, eight hundred ninety-nine million, eight hundred thirty-three thousand, seven".