121301203212311 has 8 divisors (see below), whose sum is σ = 126987465542784. Its totient is φ = 115649298963000.

The previous prime is 121301203212307. The next prime is 121301203212349. The reversal of 121301203212311 is 113212302103121.

It is a happy number.

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 121301203212311 - 2² = 121301203212307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301803212311) 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, 8589513065 + ... + 8589527186.

It is an arithmetic number, because the mean of its divisors is an integer number (15873433192848).

Almost surely, 2^{121301203212311} is an apocalyptic number.

121301203212311 is a deficient number, since it is larger than the sum of its proper divisors (5686262330473).

121301203212311 is a wasteful number, since it uses less digits than its factorization.

121301203212311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17179040581.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 121301203212311 its reverse (113212302103121), we get a palindrome (234513505315432).

The spelling of 121301203212311 in words is "one hundred twenty-one trillion, three hundred one billion, two hundred three million, two hundred twelve thousand, three hundred eleven".