121331120222311 has 4 divisors (see below), whose sum is σ = 121478904778824. Its totient is φ = 121183335665800.

The previous prime is 121331120222309. The next prime is 121331120222369. The reversal of 121331120222311 is 113222021133121.

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 121331120222311 - 2¹ = 121331120222309 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 (121331120225311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73892277025 + ... + 73892278666.

It is an arithmetic number, because the mean of its divisors is an integer number (30369726194706).

Almost surely, 2^{121331120222311} is an apocalyptic number.

121331120222311 is a deficient number, since it is larger than the sum of its proper divisors (147784556513).

121331120222311 is an equidigital number, since it uses as much as digits as its factorization.

121331120222311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147784556512.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 121331120222311 its reverse (113222021133121), we get a palindrome (234553141355432).

The spelling of 121331120222311 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, one hundred twenty million, two hundred twenty-two thousand, three hundred eleven".