121012310003 has 4 divisors (see below), whose sum is σ = 130320949248. Its totient is φ = 111703670760.

The previous prime is 121012309961. The next prime is 121012310063. The reversal of 121012310003 is 300013210121.

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 121012310003 - 2¹⁰ = 121012308979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121012310003.

It is not an unprimeable number, because it can be changed into a prime (121012310063) 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, 4654319603 + ... + 4654319628.

It is an arithmetic number, because the mean of its divisors is an integer number (32580237312).

Almost surely, 2^121012310003 is an apocalyptic number.

121012310003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121012310003 is a deficient number, since it is larger than the sum of its proper divisors (9308639245).

121012310003 is an equidigital number, since it uses as much as digits as its factorization.

121012310003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9308639244.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 121012310003 its reverse (300013210121), we get a palindrome (421025520124).

The spelling of 121012310003 in words is "one hundred twenty-one billion, twelve million, three hundred ten thousand, three".