315042603021251 has 8 divisors (see below), whose sum is σ = 361206401996544. Its totient is φ = 269168232253320.

The previous prime is 315042603021247. The next prime is 315042603021253. The reversal of 315042603021251 is 152120306240513.

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 315042603021251 - 2² = 315042603021247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315042603021253) 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, 72357049505 + ... + 72357053858.

It is an arithmetic number, because the mean of its divisors is an integer number (45150800249568).

Almost surely, 2^{315042603021251} is an apocalyptic number.

315042603021251 is a deficient number, since it is larger than the sum of its proper divisors (46163798975293).

315042603021251 is a wasteful number, since it uses less digits than its factorization.

315042603021251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144714103681.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 315042603021251 its reverse (152120306240513), we get a palindrome (467162909261764).

The spelling of 315042603021251 in words is "three hundred fifteen trillion, forty-two billion, six hundred three million, twenty-one thousand, two hundred fifty-one".