10123203221999 has 16 divisors (see below), whose sum is σ = 11603992248576. Its totient is φ = 8651073984000.

The previous prime is 10123203221951. The next prime is 10123203222037. The reversal of 10123203221999 is 99912230232101.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-10123203221999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123203229999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22319024 + ... + 22768074.

It is an arithmetic number, because the mean of its divisors is an integer number (725249515536).

Almost surely, 2^{10123203221999} is an apocalyptic number.

10123203221999 is a deficient number, since it is larger than the sum of its proper divisors (1480789026577).

10123203221999 is an equidigital number, since it uses as much as digits as its factorization.

10123203221999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458686.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 10123203221999 in words is "ten trillion, one hundred twenty-three billion, two hundred three million, two hundred twenty-one thousand, nine hundred ninety-nine".