100121011203 has 16 divisors (see below), whose sum is σ = 136792656000. Its totient is φ = 65099353920.

The previous prime is 100121011201. The next prime is 100121011219. The reversal of 100121011203 is 302110121001.

It is not a de Polignac number, because 100121011203 - 2¹ = 100121011201 is a prime.

It is a super-2 number, since 2×100121011203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100121011201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282408 + ... + 529146.

It is an arithmetic number, because the mean of its divisors is an integer number (8549541000).

Almost surely, 2^100121011203 is an apocalyptic number.

100121011203 is a deficient number, since it is larger than the sum of its proper divisors (36671644797).

100121011203 is a wasteful number, since it uses less digits than its factorization.

100121011203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250082.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 100121011203 its reverse (302110121001), we get a palindrome (402231132204).

The spelling of 100121011203 in words is "one hundred billion, one hundred twenty-one million, eleven thousand, two hundred three".