10203232121099 has 4 divisors (see below), whose sum is σ = 10209119735136. Its totient is φ = 10197344507064.

The previous prime is 10203232121011. The next prime is 10203232121143. The reversal of 10203232121099 is 99012123230201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10203232121099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203232126099) 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 3 ways as a sum of consecutive naturals, for example, 2943804419 + ... + 2943807884.

It is an arithmetic number, because the mean of its divisors is an integer number (2552279933784).

Almost surely, 2^{10203232121099} is an apocalyptic number.

10203232121099 is a deficient number, since it is larger than the sum of its proper divisors (5887614037).

10203232121099 is an equidigital number, since it uses as much as digits as its factorization.

10203232121099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5887614036.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 10203232121099 in words is "ten trillion, two hundred three billion, two hundred thirty-two million, one hundred twenty-one thousand, ninety-nine".