121231412303 has 4 divisors (see below), whose sum is σ = 121235349120. Its totient is φ = 121227475488.

The previous prime is 121231412279. The next prime is 121231412411. The reversal of 121231412303 is 303214132121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303214132121 = 179 ⋅1693933699.

It is a cyclic number.

It is not a de Polignac number, because 121231412303 - 2⁸ = 121231412047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121231012303) 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, 1921850 + ... + 1983927.

It is an arithmetic number, because the mean of its divisors is an integer number (30308837280).

Almost surely, 2^121231412303 is an apocalyptic number.

121231412303 is a deficient number, since it is larger than the sum of its proper divisors (3936817).

121231412303 is an equidigital number, since it uses as much as digits as its factorization.

121231412303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936816.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121231412303 its reverse (303214132121), we get a palindrome (424445544424).

The spelling of 121231412303 in words is "one hundred twenty-one billion, two hundred thirty-one million, four hundred twelve thousand, three hundred three".