231303012212 has 48 divisors (see below), whose sum is σ = 427369219200. Its totient is φ = 109234661760.

The previous prime is 231303012211. The next prime is 231303012223. The reversal of 231303012212 is 212210303132.

It is a super-2 number, since 2×231303012212² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231303012211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59874593 + ... + 59878455.

It is an arithmetic number, because the mean of its divisors is an integer number (8903525400).

Almost surely, 2^231303012212 is an apocalyptic number.

It is an amenable number.

231303012212 is a deficient number, since it is larger than the sum of its proper divisors (196066206988).

231303012212 is a wasteful number, since it uses less digits than its factorization.

231303012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056 (or 6054 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231303012212 its reverse (212210303132), we get a palindrome (443513315344).

The spelling of 231303012212 in words is "two hundred thirty-one billion, three hundred three million, twelve thousand, two hundred twelve".