100121000003 has 16 divisors (see below), whose sum is σ = 101515692480. Its totient is φ = 98737906176.

The previous prime is 100120999991. The next prime is 100121000029. The reversal of 100121000003 is 300000121001.

It is a cyclic number.

It is not a de Polignac number, because 100121000003 - 2²⁰ = 100119951427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100121000803) 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, 15275375 + ... + 15281927.

It is an arithmetic number, because the mean of its divisors is an integer number (6344730780).

Almost surely, 2^100121000003 is an apocalyptic number.

100121000003 is a deficient number, since it is larger than the sum of its proper divisors (1394692477).

100121000003 is a wasteful number, since it uses less digits than its factorization.

100121000003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7406.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 100121000003 its reverse (300000121001), we get a palindrome (400121121004).

The spelling of 100121000003 in words is "one hundred billion, one hundred twenty-one million, three", and thus it is an aban number.