112121210203 has 4 divisors (see below), whose sum is σ = 112690353600. Its totient is φ = 111552066808.

The previous prime is 112121210063. The next prime is 112121210239. The reversal of 112121210203 is 302012121211.

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-112121210203 is a prime.

It is a super-2 number, since 2×112121210203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112121210503) 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, 284571403 + ... + 284571796.

It is an arithmetic number, because the mean of its divisors is an integer number (28172588400).

Almost surely, 2^112121210203 is an apocalyptic number.

112121210203 is a deficient number, since it is larger than the sum of its proper divisors (569143397).

112121210203 is an equidigital number, since it uses as much as digits as its factorization.

112121210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569143396.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 112121210203 its reverse (302012121211), we get a palindrome (414133331414).

The spelling of 112121210203 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred ten thousand, two hundred three".