203423232012 has 96 divisors (see below), whose sum is σ = 637297995264. Its totient is φ = 48772800000.

The previous prime is 203423232011. The next prime is 203423232049. The reversal of 203423232012 is 210232324302.

It is a super-2 number, since 2×203423232012² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203423232011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8455489 + ... + 8479512.

It is an arithmetic number, because the mean of its divisors is an integer number (6638520784).

Almost surely, 2^203423232012 is an apocalyptic number.

203423232012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

203423232012 is an abundant number, since it is smaller than the sum of its proper divisors (433874763252).

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

203423232012 is a wasteful number, since it uses less digits than its factorization.

203423232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16935039 (or 16935037 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 203423232012 its reverse (210232324302), we get a palindrome (413655556314).

The spelling of 203423232012 in words is "two hundred three billion, four hundred twenty-three million, two hundred thirty-two thousand, twelve".