121211002003 has 8 divisors (see below), whose sum is σ = 149182771808. Its totient is φ = 95903210304.

The previous prime is 121211001991. The next prime is 121211002051. The reversal of 121211002003 is 300200112121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121211002003 - 2⁵ = 121211001971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (121211002063) 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 7 ways as a sum of consecutive naturals, for example, 665994426 + ... + 665994607.

It is an arithmetic number, because the mean of its divisors is an integer number (18647846476).

Almost surely, 2^121211002003 is an apocalyptic number.

121211002003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121211002003 is a deficient number, since it is larger than the sum of its proper divisors (27971769805).

121211002003 is a wasteful number, since it uses less digits than its factorization.

121211002003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331989053.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 121211002003 its reverse (300200112121), we get a palindrome (421411114124).

The spelling of 121211002003 in words is "one hundred twenty-one billion, two hundred eleven million, two thousand, three".