20320343410 has 16 divisors (see below), whose sum is σ = 36578705112. Its totient is φ = 8127673600.

The previous prime is 20320343377. The next prime is 20320343411. The reversal of 20320343410 is 1434302302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17980396281 + 2339947129 = 134091^2 + 48373^2 .

It is not an unprimeable number, because it can be changed into a prime (20320343411) 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, 168000 + ... + 262420.

Almost surely, 2^20320343410 is an apocalyptic number.

20320343410 is a deficient number, since it is larger than the sum of its proper divisors (16258361702).

20320343410 is a wasteful number, since it uses less digits than its factorization.

20320343410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115949.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20320343410 its reverse (1434302302), we get a palindrome (21754645712).

The spelling of 20320343410 in words is "twenty billion, three hundred twenty million, three hundred forty-three thousand, four hundred ten".