103121020099 has 16 divisors (see below), whose sum is σ = 108729241920. Its totient is φ = 97607593600.

The previous prime is 103121020097. The next prime is 103121020169. The reversal of 103121020099 is 990020121301.

It is a cyclic number.

It is not a de Polignac number, because 103121020099 - 2¹ = 103121020097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103121020097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4627917 + ... + 4650145.

It is an arithmetic number, because the mean of its divisors is an integer number (6795577620).

Almost surely, 2^103121020099 is an apocalyptic number.

103121020099 is a deficient number, since it is larger than the sum of its proper divisors (5608221821).

103121020099 is a wasteful number, since it uses less digits than its factorization.

103121020099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24350.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 103121020099 in words is "one hundred three billion, one hundred twenty-one million, twenty thousand, ninety-nine".