20123302012 has 12 divisors (see below), whose sum is σ = 38417213016. Its totient is φ = 9146955440.

The previous prime is 20123302007. The next prime is 20123302037. The reversal of 20123302012 is 21020332102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228673843 + ... + 228673930.

It is an arithmetic number, because the mean of its divisors is an integer number (3201434418).

Almost surely, 2^20123302012 is an apocalyptic number.

20123302012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20123302012 is a deficient number, since it is larger than the sum of its proper divisors (18293911004).

20123302012 is a wasteful number, since it uses less digits than its factorization.

20123302012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457347788 (or 457347786 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20123302012 its reverse (21020332102), we get a palindrome (41143634114).

The spelling of 20123302012 in words is "twenty billion, one hundred twenty-three million, three hundred two thousand, twelve".