121231130330303 has 4 divisors (see below), whose sum is σ = 138549863234640. Its totient is φ = 103912397425968.

The previous prime is 121231130330293. The next prime is 121231130330347. The reversal of 121231130330303 is 303033031132121.

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 121231130330303 - 2²⁶ = 121231063221439 is a prime.

It is a super-2 number, since 2×121231130330303² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121231130330363) 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, 8659366452158 + ... + 8659366452171.

It is an arithmetic number, because the mean of its divisors is an integer number (34637465808660).

Almost surely, 2^{121231130330303} is an apocalyptic number.

121231130330303 is a deficient number, since it is larger than the sum of its proper divisors (17318732904337).

121231130330303 is an equidigital number, since it uses as much as digits as its factorization.

121231130330303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17318732904336.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 121231130330303 its reverse (303033031132121), we get a palindrome (424264161462424).

The spelling of 121231130330303 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, one hundred thirty million, three hundred thirty thousand, three hundred three".