20311424412 has 24 divisors (see below), whose sum is σ = 47862567312. Its totient is φ = 6703440000.

The previous prime is 20311424377. The next prime is 20311424437. The reversal of 20311424412 is 21442411302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8378089 + ... + 8380512.

It is an arithmetic number, because the mean of its divisors is an integer number (1994273638).

Almost surely, 2^20311424412 is an apocalyptic number.

It is an amenable number.

20311424412 is an abundant number, since it is smaller than the sum of its proper divisors (27551142900).

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

20311424412 is a wasteful number, since it uses less digits than its factorization.

20311424412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16758709 (or 16758707 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20311424412 its reverse (21442411302), we get a palindrome (41753835714).

The spelling of 20311424412 in words is "twenty billion, three hundred eleven million, four hundred twenty-four thousand, four hundred twelve".