100120012020203 has 4 divisors (see below), whose sum is σ = 114422870880240. Its totient is φ = 85817153160168.

The previous prime is 100120012020191. The next prime is 100120012020211. The reversal of 100120012020203 is 302020210021001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100120012020203 - 2²⁴ = 100119995242987 is a prime.

It is a super-2 number, since 2×100120012020203² (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 (100120012023203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7151429430008 + ... + 7151429430021.

It is an arithmetic number, because the mean of its divisors is an integer number (28605717720060).

Almost surely, 2^{100120012020203} is an apocalyptic number.

100120012020203 is a deficient number, since it is larger than the sum of its proper divisors (14302858860037).

100120012020203 is an equidigital number, since it uses as much as digits as its factorization.

100120012020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14302858860036.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 100120012020203 its reverse (302020210021001), we get a palindrome (402140222041204).

The spelling of 100120012020203 in words is "one hundred trillion, one hundred twenty billion, twelve million, twenty thousand, two hundred three".