51303402430403 has 2 divisors, whose sum is σ = 51303402430404. Its totient is φ = 51303402430402.

The previous prime is 51303402430367. The next prime is 51303402430439. The reversal of 51303402430403 is 30403420430315.

51303402430403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (51303402430367) and next prime (51303402430439).

It is a cyclic number.

It is not a de Polignac number, because 51303402430403 - 2¹⁶ = 51303402364867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51303402430403.

It is not a weakly prime, because it can be changed into another prime (51303402430003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25651701215201 + 25651701215202.

It is an arithmetic number, because the mean of its divisors is an integer number (25651701215202).

Almost surely, 2^{51303402430403} is an apocalyptic number.

51303402430403 is a deficient number, since it is larger than the sum of its proper divisors (1).

51303402430403 is an equidigital number, since it uses as much as digits as its factorization.

51303402430403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 51303402430403 its reverse (30403420430315), we get a palindrome (81706822860718).

The spelling of 51303402430403 in words is "fifty-one trillion, three hundred three billion, four hundred two million, four hundred thirty thousand, four hundred three".