121300031121311 has 4 divisors (see below), whose sum is σ = 138628606995792. Its totient is φ = 103971455246832.

The previous prime is 121300031121197. The next prime is 121300031121323. The reversal of 121300031121311 is 113121130003121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121300031121311 - 2¹⁸ = 121300030859167 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 (121300031121391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8664287937230 + ... + 8664287937243.

It is an arithmetic number, because the mean of its divisors is an integer number (34657151748948).

Almost surely, 2^{121300031121311} is an apocalyptic number.

121300031121311 is a deficient number, since it is larger than the sum of its proper divisors (17328575874481).

121300031121311 is an equidigital number, since it uses as much as digits as its factorization.

121300031121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17328575874480.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 121300031121311 its reverse (113121130003121), we get a palindrome (234421161124432).

The spelling of 121300031121311 in words is "one hundred twenty-one trillion, three hundred billion, thirty-one million, one hundred twenty-one thousand, three hundred eleven".