121962810811323 has 4 divisors (see below), whose sum is σ = 162617081081768. Its totient is φ = 81308540540880.

The previous prime is 121962810811267. The next prime is 121962810811333. The reversal of 121962810811323 is 323118018269121.

It is a happy number.

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

It is not a de Polignac number, because 121962810811323 - 2¹⁸ = 121962810549179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121962810811333) 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, 20327135135218 + ... + 20327135135223.

It is an arithmetic number, because the mean of its divisors is an integer number (40654270270442).

Almost surely, 2^{121962810811323} is an apocalyptic number.

121962810811323 is a deficient number, since it is larger than the sum of its proper divisors (40654270270445).

121962810811323 is an equidigital number, since it uses as much as digits as its factorization.

121962810811323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40654270270444.

The product of its (nonzero) digits is 248832, while the sum is 48.

The spelling of 121962810811323 in words is "one hundred twenty-one trillion, nine hundred sixty-two billion, eight hundred ten million, eight hundred eleven thousand, three hundred twenty-three".