51230103233 has 4 divisors (see below), whose sum is σ = 52479617988. Its totient is φ = 49980588480.

The previous prime is 51230103203. The next prime is 51230103241. The reversal of 51230103233 is 33230103215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33230103215 = 5 ⋅6646020643.

It can be written as a sum of positive squares in 2 ways, for example, as 27034922929 + 24195180304 = 164423^2 + 155548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51230103233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51230103199 and 51230103208.

It is not an unprimeable number, because it can be changed into a prime (51230103203) 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, 624757316 + ... + 624757397.

It is an arithmetic number, because the mean of its divisors is an integer number (13119904497).

Almost surely, 2^51230103233 is an apocalyptic number.

It is an amenable number.

51230103233 is a deficient number, since it is larger than the sum of its proper divisors (1249514755).

51230103233 is a wasteful number, since it uses less digits than its factorization.

51230103233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249514754.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 51230103233 its reverse (33230103215), we get a palindrome (84460206448).

The spelling of 51230103233 in words is "fifty-one billion, two hundred thirty million, one hundred three thousand, two hundred thirty-three".