121344201331 has 4 divisors (see below), whose sum is σ = 121878757512. Its totient is φ = 120809645152.

The previous prime is 121344201301. The next prime is 121344201359. The reversal of 121344201331 is 133102443121.

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 121344201331 - 2⁷ = 121344201203 is a prime.

It is a super-2 number, since 2×121344201331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121344201296 and 121344201305.

It is not an unprimeable number, because it can be changed into a prime (121344201301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267277750 + ... + 267278203.

It is an arithmetic number, because the mean of its divisors is an integer number (30469689378).

Almost surely, 2^121344201331 is an apocalyptic number.

121344201331 is a deficient number, since it is larger than the sum of its proper divisors (534556181).

121344201331 is an equidigital number, since it uses as much as digits as its factorization.

121344201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534556180.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121344201331 its reverse (133102443121), we get a palindrome (254446644452).

The spelling of 121344201331 in words is "one hundred twenty-one billion, three hundred forty-four million, two hundred one thousand, three hundred thirty-one".