121301560003 has 4 divisors (see below), whose sum is σ = 130632449248. Its totient is φ = 111970670760.

The previous prime is 121301559997. The next prime is 121301560007. The reversal of 121301560003 is 300065103121.

It is a happy number.

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

It is not a de Polignac number, because 121301560003 - 2⁵ = 121301559971 is a prime.

It is a super-2 number, since 2×121301560003² (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 (121301560007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4665444603 + ... + 4665444628.

It is an arithmetic number, because the mean of its divisors is an integer number (32658112312).

Almost surely, 2^121301560003 is an apocalyptic number.

121301560003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121301560003 is a deficient number, since it is larger than the sum of its proper divisors (9330889245).

121301560003 is an equidigital number, since it uses as much as digits as its factorization.

121301560003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9330889244.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 121301560003 its reverse (300065103121), we get a palindrome (421366663124).

The spelling of 121301560003 in words is "one hundred twenty-one billion, three hundred one million, five hundred sixty thousand, three".