51021201351 has 8 divisors (see below), whose sum is σ = 68029475184. Its totient is φ = 34013530880.

The previous prime is 51021201331. The next prime is 51021201367. The reversal of 51021201351 is 15310212015.

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 51021201351 - 2¹⁴ = 51021184967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51021201311) 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, 111805 + ... + 338441.

It is an arithmetic number, because the mean of its divisors is an integer number (8503684398).

Almost surely, 2^51021201351 is an apocalyptic number.

51021201351 is a deficient number, since it is larger than the sum of its proper divisors (17008273833).

51021201351 is a wasteful number, since it uses less digits than its factorization.

51021201351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301681.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 51021201351 its reverse (15310212015), we get a palindrome (66331413366).

The spelling of 51021201351 in words is "fifty-one billion, twenty-one million, two hundred one thousand, three hundred fifty-one".