51102340011 has 12 divisors (see below), whose sum is σ = 76195604160. Its totient is φ = 32969251440.

The previous prime is 51102339989. The next prime is 51102340021. The reversal of 51102340011 is 11004320115.

It is a de Polignac number, because none of the positive numbers 2^k-51102340011 is a prime.

It is a super-2 number, since 2×51102340011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51102340021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91580976 + ... + 91581533.

It is an arithmetic number, because the mean of its divisors is an integer number (6349633680).

Almost surely, 2^51102340011 is an apocalyptic number.

51102340011 is a deficient number, since it is larger than the sum of its proper divisors (25093264149).

51102340011 is a wasteful number, since it uses less digits than its factorization.

51102340011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183162546 (or 183162543 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 51102340011 its reverse (11004320115), we get a palindrome (62106660126).

The spelling of 51102340011 in words is "fifty-one billion, one hundred two million, three hundred forty thousand, eleven".