51103310042 has 8 divisors (see below), whose sum is σ = 76751146836. Its totient is φ = 25519594432.

The previous prime is 51103310029. The next prime is 51103310087. The reversal of 51103310042 is 24001330115.

It can be written as a sum of positive squares in 2 ways, for example, as 50692072201 + 411237841 = 225149^2 + 20279^2 .

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

It is a super-2 number, since 2×51103310042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51103309996 and 51103310023.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16028303 + ... + 16031490.

Almost surely, 2^51103310042 is an apocalyptic number.

51103310042 is a deficient number, since it is larger than the sum of its proper divisors (25647836794).

51103310042 is a wasteful number, since it uses less digits than its factorization.

51103310042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32060592.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 51103310042 its reverse (24001330115), we get a palindrome (75104640157).

The spelling of 51103310042 in words is "fifty-one billion, one hundred three million, three hundred ten thousand, forty-two".