121403002403 has 2 divisors, whose sum is σ = 121403002404. Its totient is φ = 121403002402.

The previous prime is 121403002397. The next prime is 121403002421. The reversal of 121403002403 is 304200304121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121403002403 - 2⁶ = 121403002339 is a prime.

It is not a weakly prime, because it can be changed into another prime (121403092403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60701501201 + 60701501202.

It is an arithmetic number, because the mean of its divisors is an integer number (60701501202).

Almost surely, 2^121403002403 is an apocalyptic number.

121403002403 is a deficient number, since it is larger than the sum of its proper divisors (1).

121403002403 is an equidigital number, since it uses as much as digits as its factorization.

121403002403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 121403002403 its reverse (304200304121), we get a palindrome (425603306524).

The spelling of 121403002403 in words is "one hundred twenty-one billion, four hundred three million, two thousand, four hundred three".