20315252544302 has 4 divisors (see below), whose sum is σ = 30472878816456. Its totient is φ = 10157626272150.

The previous prime is 20315252544259. The next prime is 20315252544331. The reversal of 20315252544302 is 20344525251302.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5078813136074 + ... + 5078813136077.

It is an arithmetic number, because the mean of its divisors is an integer number (7618219704114).

Almost surely, 2^{20315252544302} is an apocalyptic number.

20315252544302 is a deficient number, since it is larger than the sum of its proper divisors (10157626272154).

20315252544302 is a wasteful number, since it uses less digits than its factorization.

20315252544302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10157626272153.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 20315252544302 its reverse (20344525251302), we get a palindrome (40659777795604).

The spelling of 20315252544302 in words is "twenty trillion, three hundred fifteen billion, two hundred fifty-two million, five hundred forty-four thousand, three hundred two".