51111230022001 has 8 divisors (see below), whose sum is σ = 51151121696808. Its totient is φ = 51071339280000.

The previous prime is 51111230021921. The next prime is 51111230022043. The reversal of 51111230022001 is 10022003211115.

51111230022001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 471212229601 + 50640017792400 = 686449^2 + 7116180^2 .

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 51111230022001 - 2¹¹ = 51111230019953 is a prime.

It is a super-2 number, since 2×51111230022001² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51111230022001.

It is not an unprimeable number, because it can be changed into a prime (51111230023001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144131131 + ... + 144485311.

It is an arithmetic number, because the mean of its divisors is an integer number (6393890212101).

Almost surely, 2^{51111230022001} is an apocalyptic number.

It is an amenable number.

51111230022001 is a deficient number, since it is larger than the sum of its proper divisors (39891674807).

51111230022001 is a wasteful number, since it uses less digits than its factorization.

51111230022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466403.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 51111230022001 its reverse (10022003211115), we get a palindrome (61133233233116).

The spelling of 51111230022001 in words is "fifty-one trillion, one hundred eleven billion, two hundred thirty million, twenty-two thousand, one".