100121020101203 has 32 divisors (see below), whose sum is σ = 111947118059520. Its totient is φ = 89106696000000.

The previous prime is 100121020101163. The next prime is 100121020101281. The reversal of 100121020101203 is 302101020121001.

It is a cyclic number.

It is not a de Polignac number, because 100121020101203 - 2³⁰ = 100119946359379 is a prime.

It is a super-2 number, since 2×100121020101203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100121020101503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4185923 + ... + 14756828.

It is an arithmetic number, because the mean of its divisors is an integer number (3498347439360).

Almost surely, 2^{100121020101203} is an apocalyptic number.

100121020101203 is a deficient number, since it is larger than the sum of its proper divisors (11826097958317).

100121020101203 is a wasteful number, since it uses less digits than its factorization.

100121020101203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18943019.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 100121020101203 its reverse (302101020121001), we get a palindrome (402222040222204).

The spelling of 100121020101203 in words is "one hundred trillion, one hundred twenty-one billion, twenty million, one hundred one thousand, two hundred three".