20312320203002 has 4 divisors (see below), whose sum is σ = 30468480304506. Its totient is φ = 10156160101500.

The previous prime is 20312320202963. The next prime is 20312320203029. The reversal of 20312320203002 is 20030202321302.

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., 19536055241521 + 776264961481 = 4419961^2 + 881059^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5078080050749 + ... + 5078080050752.

Almost surely, 2^{20312320203002} is an apocalyptic number.

20312320203002 is a deficient number, since it is larger than the sum of its proper divisors (10156160101504).

20312320203002 is a wasteful number, since it uses less digits than its factorization.

20312320203002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156160101503.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20312320203002 its reverse (20030202321302), we get a palindrome (40342522524304).

The spelling of 20312320203002 in words is "twenty trillion, three hundred twelve billion, three hundred twenty million, two hundred three thousand, two".