20304478110 has 64 divisors (see below), whose sum is σ = 55711286784. Its totient is φ = 4639440000.

The previous prime is 20304478109. The next prime is 20304478141. The reversal of 20304478110 is 1187440302.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667840 + ... + 697580.

It is an arithmetic number, because the mean of its divisors is an integer number (870488856).

Almost surely, 2^20304478110 is an apocalyptic number.

20304478110 is an abundant number, since it is smaller than the sum of its proper divisors (35406808674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20304478110 is a wasteful number, since it uses less digits than its factorization.

20304478110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33009.

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 20304478110 in words is "twenty billion, three hundred four million, four hundred seventy-eight thousand, one hundred ten".