121331303303 has 6 divisors (see below), whose sum is σ = 141140495736. Its totient is φ = 103998259932.

The previous prime is 121331303297. The next prime is 121331303369. The reversal of 121331303303 is 303303133121.

It is not a de Polignac number, because 121331303303 - 2⁸ = 121331303047 is a prime.

It is a super-2 number, since 2×121331303303² (a number of 23 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 (121331303383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1238074475 + ... + 1238074572.

It is an arithmetic number, because the mean of its divisors is an integer number (23523415956).

Almost surely, 2^121331303303 is an apocalyptic number.

121331303303 is a deficient number, since it is larger than the sum of its proper divisors (19809192433).

121331303303 is an equidigital number, since it uses as much as digits as its factorization.

121331303303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476149061 (or 2476149054 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 121331303303 its reverse (303303133121), we get a palindrome (424634436424).

The spelling of 121331303303 in words is "one hundred twenty-one billion, three hundred thirty-one million, three hundred three thousand, three hundred three".