51021203115 has 8 divisors (see below), whose sum is σ = 81633925008. Its totient is φ = 27211308320.

The previous prime is 51021203069. The next prime is 51021203141. The reversal of 51021203115 is 51130212015.

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

It is not a de Polignac number, because 51021203115 - 2¹⁴ = 51021186731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51021203091 and 51021203100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700706756 + ... + 1700706785.

It is an arithmetic number, because the mean of its divisors is an integer number (10204240626).

Almost surely, 2^51021203115 is an apocalyptic number.

51021203115 is a deficient number, since it is larger than the sum of its proper divisors (30612721893).

51021203115 is a wasteful number, since it uses less digits than its factorization.

51021203115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401413549.

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

The spelling of 51021203115 in words is "fifty-one billion, twenty-one million, two hundred three thousand, one hundred fifteen".