51103049243 has 8 divisors (see below), whose sum is σ = 51973686960. Its totient is φ = 50232561120.

The previous prime is 51103049213. The next prime is 51103049251. The reversal of 51103049243 is 34294030115.

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

It is a cyclic number.

It is not a de Polignac number, because 51103049243 - 2¹⁰ = 51103048219 is a prime.

It is a super-2 number, since 2×51103049243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51103049203) 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, 815921 + ... + 876317.

It is an arithmetic number, because the mean of its divisors is an integer number (6496710870).

Almost surely, 2^51103049243 is an apocalyptic number.

51103049243 is a deficient number, since it is larger than the sum of its proper divisors (870637717).

51103049243 is a wasteful number, since it uses less digits than its factorization.

51103049243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74797.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 51103049243 its reverse (34294030115), we get a palindrome (85397079358).

The spelling of 51103049243 in words is "fifty-one billion, one hundred three million, forty-nine thousand, two hundred forty-three".