51203023 has 2 divisors, whose sum is σ = 51203024. Its totient is φ = 51203022.

The previous prime is 51203017. The next prime is 51203039. The reversal of 51203023 is 32030215.

It is an a-pointer prime, because the next prime (51203039) can be obtained adding 51203023 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51203023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51202988 and 51203006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51203063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25601511 + 25601512.

It is an arithmetic number, because the mean of its divisors is an integer number (25601512).

Almost surely, 2^51203023 is an apocalyptic number.

51203023 is a deficient number, since it is larger than the sum of its proper divisors (1).

51203023 is an equidigital number, since it uses as much as digits as its factorization.

51203023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 51203023 is about 7155.6287634281. The cubic root of 51203023 is about 371.3344146301.

Adding to 51203023 its reverse (32030215), we get a palindrome (83233238).

The spelling of 51203023 in words is "fifty-one million, two hundred three thousand, twenty-three".