20315251011322 has 32 divisors (see below), whose sum is σ = 32396370209280. Its totient is φ = 9527128372800.

The previous prime is 20315251011283. The next prime is 20315251011413. The reversal of 20315251011322 is 22311015251302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63078103 + ... + 63399349.

It is an arithmetic number, because the mean of its divisors is an integer number (1012386569040).

Almost surely, 2^{20315251011322} is an apocalyptic number.

20315251011322 is a deficient number, since it is larger than the sum of its proper divisors (12081119197958).

20315251011322 is a wasteful number, since it uses less digits than its factorization.

20315251011322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337846.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 20315251011322 its reverse (22311015251302), we get a palindrome (42626266262624).

The spelling of 20315251011322 in words is "twenty trillion, three hundred fifteen billion, two hundred fifty-one million, eleven thousand, three hundred twenty-two".