121112233020103 has 4 divisors (see below), whose sum is σ = 130428558637048. Its totient is φ = 111795907403160.

The previous prime is 121112233020059. The next prime is 121112233020157. The reversal of 121112233020103 is 301020332211121.

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-121112233020103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112233029103) 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, 4658162808453 + ... + 4658162808478.

It is an arithmetic number, because the mean of its divisors is an integer number (32607139659262).

Almost surely, 2^{121112233020103} is an apocalyptic number.

121112233020103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121112233020103 is a deficient number, since it is larger than the sum of its proper divisors (9316325616945).

121112233020103 is an equidigital number, since it uses as much as digits as its factorization.

121112233020103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9316325616944.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121112233020103 its reverse (301020332211121), we get a palindrome (422132565231224).

The spelling of 121112233020103 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred thirty-three million, twenty thousand, one hundred three".