51100201443 has 4 divisors (see below), whose sum is σ = 68133601928. Its totient is φ = 34066800960.

The previous prime is 51100201441. The next prime is 51100201501. The reversal of 51100201443 is 34410200115.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51100201443 - 2¹ = 51100201441 is a prime.

It is a super-2 number, since 2×51100201443² (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 (51100201441) 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, 8516700238 + ... + 8516700243.

It is an arithmetic number, because the mean of its divisors is an integer number (17033400482).

Almost surely, 2^51100201443 is an apocalyptic number.

51100201443 is a deficient number, since it is larger than the sum of its proper divisors (17033400485).

51100201443 is a wasteful number, since it uses less digits than its factorization.

51100201443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17033400484.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 51100201443 its reverse (34410200115), we get a palindrome (85510401558).

The spelling of 51100201443 in words is "fifty-one billion, one hundred million, two hundred one thousand, four hundred forty-three".