51243432202403 has 8 divisors (see below), whose sum is σ = 60453081308160. Its totient is φ = 42506072794440.

The previous prime is 51243432202379. The next prime is 51243432202411. The reversal of 51243432202403 is 30420223434215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51243432202403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51243432202453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118072424213 + ... + 118072424646.

It is an arithmetic number, because the mean of its divisors is an integer number (7556635163520).

Almost surely, 2^{51243432202403} is an apocalyptic number.

51243432202403 is a deficient number, since it is larger than the sum of its proper divisors (9209649105757).

51243432202403 is a wasteful number, since it uses less digits than its factorization.

51243432202403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236144848897.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 51243432202403 its reverse (30420223434215), we get a palindrome (81663655636618).

The spelling of 51243432202403 in words is "fifty-one trillion, two hundred forty-three billion, four hundred thirty-two million, two hundred two thousand, four hundred three".