121303303441 has 4 divisors (see below), whose sum is σ = 121388549632. Its totient is φ = 121218057252.

The previous prime is 121303303421. The next prime is 121303303453. The reversal of 121303303441 is 144303303121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144303303121 = 73 ⋅1976757577.

It is a cyclic number.

It is not a de Polignac number, because 121303303441 - 2⁵ = 121303303409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121303303421) 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, 42620961 + ... + 42623806.

It is an arithmetic number, because the mean of its divisors is an integer number (30347137408).

Almost surely, 2^121303303441 is an apocalyptic number.

It is an amenable number.

121303303441 is a deficient number, since it is larger than the sum of its proper divisors (85246191).

121303303441 is an equidigital number, since it uses as much as digits as its factorization.

121303303441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85246190.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 121303303441 its reverse (144303303121), we get a palindrome (265606606562).

The spelling of 121303303441 in words is "one hundred twenty-one billion, three hundred three million, three hundred three thousand, four hundred forty-one".