231322212120230 has 64 divisors (see below), whose sum is σ = 519451863943680. Its totient is φ = 72054767289600.

The previous prime is 231322212120221. The next prime is 231322212120281. The reversal of 231322212120230 is 32021212223132.

It is a super-2 number, since 2×231322212120230² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231322212120230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93913511 + ... + 96345170.

It is an arithmetic number, because the mean of its divisors is an integer number (8116435374120).

Almost surely, 2^{231322212120230} is an apocalyptic number.

231322212120230 is an abundant number, since it is smaller than the sum of its proper divisors (288129651823450).

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

231322212120230 is a wasteful number, since it uses less digits than its factorization.

231322212120230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190260285.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 231322212120230 its reverse (32021212223132), we get a palindrome (263343424343362).

The spelling of 231322212120230 in words is "two hundred thirty-one trillion, three hundred twenty-two billion, two hundred twelve million, one hundred twenty thousand, two hundred thirty".