121212322303 has 16 divisors (see below), whose sum is σ = 126444840192. Its totient is φ = 116064000000.

The previous prime is 121212322237. The next prime is 121212322321. The reversal of 121212322303 is 303223212121.

It is a de Polignac number, because none of the positive numbers 2^k-121212322303 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 (121212382303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5038303 + ... + 5062303.

It is an arithmetic number, because the mean of its divisors is an integer number (7902802512).

Almost surely, 2^121212322303 is an apocalyptic number.

121212322303 is a deficient number, since it is larger than the sum of its proper divisors (5232517889).

121212322303 is a wasteful number, since it uses less digits than its factorization.

121212322303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25746.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121212322303 its reverse (303223212121), we get a palindrome (424435534424).

The spelling of 121212322303 in words is "one hundred twenty-one billion, two hundred twelve million, three hundred twenty-two thousand, three hundred three".