100123120003 has 16 divisors (see below), whose sum is σ = 104592127104. Its totient is φ = 95772044160.

The previous prime is 100123120001. The next prime is 100123120021. The reversal of 100123120003 is 300021321001.

It is a cyclic number.

It is not a de Polignac number, because 100123120003 - 2¹ = 100123120001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100123120001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338901 + ... + 561337.

It is an arithmetic number, because the mean of its divisors is an integer number (6537007944).

Almost surely, 2^100123120003 is an apocalyptic number.

100123120003 is a deficient number, since it is larger than the sum of its proper divisors (4469007101).

100123120003 is a wasteful number, since it uses less digits than its factorization.

100123120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222702.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 100123120003 its reverse (300021321001), we get a palindrome (400144441004).

The spelling of 100123120003 in words is "one hundred billion, one hundred twenty-three million, one hundred twenty thousand, three".