20111430324 has 12 divisors (see below), whose sum is σ = 46926670784. Its totient is φ = 6703810104.

The previous prime is 20111430277. The next prime is 20111430347. The reversal of 20111430324 is 42303411102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 20111430324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837976252 + ... + 837976275.

Almost surely, 2^20111430324 is an apocalyptic number.

It is an amenable number.

20111430324 is an abundant number, since it is smaller than the sum of its proper divisors (26815240460).

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

20111430324 is a wasteful number, since it uses less digits than its factorization.

20111430324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675952534 (or 1675952532 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20111430324 its reverse (42303411102), we get a palindrome (62414841426).

The spelling of 20111430324 in words is "twenty billion, one hundred eleven million, four hundred thirty thousand, three hundred twenty-four".