234821031225 has 192 divisors, whose sum is σ = 450211184640. Its totient is φ = 106928640000.

The previous prime is 234821031169. The next prime is 234821031227. The reversal of 234821031225 is 522130128432.

It is not a de Polignac number, because 234821031225 - 2¹⁹ = 234820506937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (234821031227) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 250608957 + ... + 250609893.

It is an arithmetic number, because the mean of its divisors is an integer number (2344849920).

Almost surely, 2^234821031225 is an apocalyptic number.

234821031225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

234821031225 is a deficient number, since it is larger than the sum of its proper divisors (215390153415).

234821031225 is a wasteful number, since it uses less digits than its factorization.

234821031225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 234821031225 its reverse (522130128432), we get a palindrome (756951159657).

The spelling of 234821031225 in words is "two hundred thirty-four billion, eight hundred twenty-one million, thirty-one thousand, two hundred twenty-five".