10303123221999 has 24 divisors (see below), whose sum is σ = 14944475989872. Its totient is φ = 6840048833280.

The previous prime is 10303123221949. The next prime is 10303123222019. The reversal of 10303123221999 is 99912232130301.

10303123221999 is a `hidden beast` number, since 1 + 0 + 3 + 0 + 312 + 32 + 219 + 99 = 666.

It is not a de Polignac number, because 10303123221999 - 2¹¹ = 10303123219951 is a prime.

It is a super-4 number, since 4×10303123221999⁴ (a number of 53 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10303123221949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139653229 + ... + 139726985.

It is an arithmetic number, because the mean of its divisors is an integer number (622686499578).

Almost surely, 2^{10303123221999} is an apocalyptic number.

10303123221999 is a deficient number, since it is larger than the sum of its proper divisors (4641352767873).

10303123221999 is a wasteful number, since it uses less digits than its factorization.

10303123221999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138407 (or 138404 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The spelling of 10303123221999 in words is "ten trillion, three hundred three billion, one hundred twenty-three million, two hundred twenty-one thousand, nine hundred ninety-nine".