51100020322 has 16 divisors (see below), whose sum is σ = 86135152320. Its totient is φ = 22559206032.

The previous prime is 51100020289. The next prime is 51100020329. The reversal of 51100020322 is 22302000115.

It is a super-2 number, since 2×51100020322² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51100020296 and 51100020305.

It is not an unprimeable number, because it can be changed into a prime (51100020329) 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, 42725172 + ... + 42726367.

It is an arithmetic number, because the mean of its divisors is an integer number (5383447020).

Almost surely, 2^51100020322 is an apocalyptic number.

51100020322 is a deficient number, since it is larger than the sum of its proper divisors (35035131998).

51100020322 is a wasteful number, since it uses less digits than its factorization.

51100020322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85451577.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 51100020322 its reverse (22302000115), we get a palindrome (73402020437).

The spelling of 51100020322 in words is "fifty-one billion, one hundred million, twenty thousand, three hundred twenty-two".