51421112341 has 4 divisors (see below), whose sum is σ = 52810872172. Its totient is φ = 50031352512.

The previous prime is 51421112333. The next prime is 51421112371. The reversal of 51421112341 is 14321112415.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28664183025 + 22756929316 = 169305^2 + 150854^2 .

It is a cyclic number.

It is not a de Polignac number, because 51421112341 - 2³ = 51421112333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51421112371) 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, 694879860 + ... + 694879933.

It is an arithmetic number, because the mean of its divisors is an integer number (13202718043).

Almost surely, 2^51421112341 is an apocalyptic number.

It is an amenable number.

51421112341 is a deficient number, since it is larger than the sum of its proper divisors (1389759831).

51421112341 is a wasteful number, since it uses less digits than its factorization.

51421112341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389759830.

The product of its digits is 960, while the sum is 25.

Adding to 51421112341 its reverse (14321112415), we get a palindrome (65742224756).

The spelling of 51421112341 in words is "fifty-one billion, four hundred twenty-one million, one hundred twelve thousand, three hundred forty-one".