121312212303 has 8 divisors (see below), whose sum is σ = 161755559728. Its totient is φ = 80871836544.

The previous prime is 121312212233. The next prime is 121312212341. The reversal of 121312212303 is 303212213121.

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

It is not a de Polignac number, because 121312212303 - 2⁹ = 121312211791 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 121312212303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121312213303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645850 + ... + 812247.

It is an arithmetic number, because the mean of its divisors is an integer number (20219444966).

Almost surely, 2^121312212303 is an apocalyptic number.

121312212303 is a deficient number, since it is larger than the sum of its proper divisors (40443347425).

121312212303 is a wasteful number, since it uses less digits than its factorization.

121312212303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485833.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121312212303 its reverse (303212213121), we get a palindrome (424524425424).

The spelling of 121312212303 in words is "one hundred twenty-one billion, three hundred twelve million, two hundred twelve thousand, three hundred three".