121244340431 has 8 divisors (see below), whose sum is σ = 122095225728. Its totient is φ = 120396375000.

The previous prime is 121244340421. The next prime is 121244340433. The reversal of 121244340431 is 134043442121.

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 121244340431 - 2¹⁸ = 121244078287 is a prime.

It is a super-2 number, since 2×121244340431² (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 = 121244340394 and 121244340403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121244340433) 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, 646595 + ... + 812756.

It is an arithmetic number, because the mean of its divisors is an integer number (15261903216).

Almost surely, 2^121244340431 is an apocalyptic number.

121244340431 is a deficient number, since it is larger than the sum of its proper divisors (850885297).

121244340431 is a wasteful number, since it uses less digits than its factorization.

121244340431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459933.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 121244340431 its reverse (134043442121), we get a palindrome (255287782552).

The spelling of 121244340431 in words is "one hundred twenty-one billion, two hundred forty-four million, three hundred forty thousand, four hundred thirty-one".