121312232303 has 2 divisors, whose sum is σ = 121312232304. Its totient is φ = 121312232302.

The previous prime is 121312232233. The next prime is 121312232341. The reversal of 121312232303 is 303232213121.

It is a strong prime.

It is an emirp because it is prime and its reverse (303232213121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121312232303 - 2³⁴ = 104132363119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121312232603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60656116151 + 60656116152.

It is an arithmetic number, because the mean of its divisors is an integer number (60656116152).

Almost surely, 2^121312232303 is an apocalyptic number.

121312232303 is a deficient number, since it is larger than the sum of its proper divisors (1).

121312232303 is an equidigital number, since it uses as much as digits as its factorization.

121312232303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 121312232303 its reverse (303232213121), we get a palindrome (424544445424).

The spelling of 121312232303 in words is "one hundred twenty-one billion, three hundred twelve million, two hundred thirty-two thousand, three hundred three".