20315115125351 has 8 divisors (see below), whose sum is σ = 21268836776880. Its totient is φ = 19378273503232.

The previous prime is 20315115125311. The next prime is 20315115125359. The reversal of 20315115125351 is 15352151151302.

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 20315115125351 - 2⁶ = 20315115125287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315115125359) 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, 4220004890 + ... + 4220009703.

It is an arithmetic number, because the mean of its divisors is an integer number (2658604597110).

Almost surely, 2^{20315115125351} is an apocalyptic number.

20315115125351 is a deficient number, since it is larger than the sum of its proper divisors (953721651529).

20315115125351 is an equidigital number, since it uses as much as digits as its factorization.

20315115125351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440014705.

The product of its (nonzero) digits is 22500, while the sum is 35.

Adding to 20315115125351 its reverse (15352151151302), we get a palindrome (35667266276653).

The spelling of 20315115125351 in words is "twenty trillion, three hundred fifteen billion, one hundred fifteen million, one hundred twenty-five thousand, three hundred fifty-one".