231110020212 has 48 divisors (see below), whose sum is σ = 546563297280. Its totient is φ = 75998566368.

The previous prime is 231110020159. The next prime is 231110020213. The reversal of 231110020212 is 212020011132.

It is a junction number, because it is equal to n+sod(n) for n = 231110020191 and 231110020200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231110020213) 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, 30412 + ... + 680547.

It is an arithmetic number, because the mean of its divisors is an integer number (11386735360).

Almost surely, 2^231110020212 is an apocalyptic number.

It is an amenable number.

231110020212 is an abundant number, since it is smaller than the sum of its proper divisors (315453277068).

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

231110020212 is a wasteful number, since it uses less digits than its factorization.

231110020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711332 (or 711330 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 231110020212 its reverse (212020011132), we get a palindrome (443130031344).

The spelling of 231110020212 in words is "two hundred thirty-one billion, one hundred ten million, twenty thousand, two hundred twelve".