51021232322 has 8 divisors (see below), whose sum is σ = 77045485500. Its totient is φ = 25339403824.

The previous prime is 51021232313. The next prime is 51021232351. The reversal of 51021232322 is 22323212015.

It can be written as a sum of positive squares in 2 ways, for example, as 49435520281 + 1585712041 = 222341^2 + 39821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51021232322² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85605797 + ... + 85606392.

Almost surely, 2^51021232322 is an apocalyptic number.

51021232322 is a deficient number, since it is larger than the sum of its proper divisors (26024253178).

51021232322 is a wasteful number, since it uses less digits than its factorization.

51021232322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171212340.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 51021232322 its reverse (22323212015), we get a palindrome (73344444337).

The spelling of 51021232322 in words is "fifty-one billion, twenty-one million, two hundred thirty-two thousand, three hundred twenty-two".