140203231212 has 48 divisors (see below), whose sum is σ = 357131174400. Its totient is φ = 42456039360.

The previous prime is 140203231211. The next prime is 140203231261. The reversal of 140203231212 is 212132302041.

It is not an unprimeable number, because it can be changed into a prime (140203231211) by changing a digit.

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, 183012 + ... + 560267.

It is an arithmetic number, because the mean of its divisors is an integer number (7440232800).

Almost surely, 2^140203231212 is an apocalyptic number.

140203231212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140203231212 is an abundant number, since it is smaller than the sum of its proper divisors (216927943188).

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

140203231212 is a wasteful number, since it uses less digits than its factorization.

140203231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744726 (or 744724 counting only the distinct ones).

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

Adding to 140203231212 its reverse (212132302041), we get a palindrome (352335533253).

The spelling of 140203231212 in words is "one hundred forty billion, two hundred three million, two hundred thirty-one thousand, two hundred twelve".