51022321142 has 8 divisors (see below), whose sum is σ = 82420672656. Its totient is φ = 23548763592.

The previous prime is 51022321121. The next prime is 51022321159. The reversal of 51022321142 is 24112322015.

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

It is a congruent number.

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, 981198458 + ... + 981198509.

It is an arithmetic number, because the mean of its divisors is an integer number (10302584082).

Almost surely, 2^51022321142 is an apocalyptic number.

51022321142 is a deficient number, since it is larger than the sum of its proper divisors (31398351514).

51022321142 is a wasteful number, since it uses less digits than its factorization.

51022321142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962396982.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 51022321142 its reverse (24112322015), we get a palindrome (75134643157).

The spelling of 51022321142 in words is "fifty-one billion, twenty-two million, three hundred twenty-one thousand, one hundred forty-two".