315135323402 has 4 divisors (see below), whose sum is σ = 472702985106. Its totient is φ = 157567661700.

The previous prime is 315135323329. The next prime is 315135323449. The reversal of 315135323402 is 204323531513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 158779137841 + 156356185561 = 398471^2 + 395419^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78783830849 + ... + 78783830852.

Almost surely, 2^315135323402 is an apocalyptic number.

315135323402 is a deficient number, since it is larger than the sum of its proper divisors (157567661704).

315135323402 is a wasteful number, since it uses less digits than its factorization.

315135323402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157567661703.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 315135323402 its reverse (204323531513), we get a palindrome (519458854915).

The spelling of 315135323402 in words is "three hundred fifteen billion, one hundred thirty-five million, three hundred twenty-three thousand, four hundred two".