121203007 has 4 divisors (see below), whose sum is σ = 122016600. Its totient is φ = 120389416.

The previous prime is 121202981. The next prime is 121203037. The reversal of 121203007 is 700302121.

It is a happy number.

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-121203007 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 (121203037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406573 + ... + 406870.

It is an arithmetic number, because the mean of its divisors is an integer number (30504150).

Almost surely, 2^121203007 is an apocalyptic number.

121203007 is a deficient number, since it is larger than the sum of its proper divisors (813593).

121203007 is an equidigital number, since it uses as much as digits as its factorization.

121203007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813592.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 121203007 is about 11009.2237237691. The cubic root of 121203007 is about 494.8851986943.

Adding to 121203007 its reverse (700302121), we get a palindrome (821505128).

The spelling of 121203007 in words is "one hundred twenty-one million, two hundred three thousand, seven".