20343122012 has 48 divisors (see below), whose sum is σ = 37905537600. Its totient is φ = 9519820800.

The previous prime is 20343121999. The next prime is 20343122021. The reversal of 20343122012 is 21022134302.

It is a super-2 number, since 2×20343122012² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 14540489 + ... + 14541887.

It is an arithmetic number, because the mean of its divisors is an integer number (789698700).

Almost surely, 2^20343122012 is an apocalyptic number.

It is an amenable number.

20343122012 is a deficient number, since it is larger than the sum of its proper divisors (17562415588).

20343122012 is a wasteful number, since it uses less digits than its factorization.

20343122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462 (or 2460 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20343122012 its reverse (21022134302), we get a palindrome (41365256314).

The spelling of 20343122012 in words is "twenty billion, three hundred forty-three million, one hundred twenty-two thousand, twelve".