231052122 has 128 divisors (see below), whose sum is σ = 630374400. Its totient is φ = 61259328.

The previous prime is 231052121. The next prime is 231052153. The reversal of 231052122 is 221250132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 231052095 and 231052104.

It is not an unprimeable number, because it can be changed into a prime (231052121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 380343 + ... + 380949.

It is an arithmetic number, because the mean of its divisors is an integer number (4924800).

Almost surely, 2^231052122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231052122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315187200).

231052122 is an abundant number, since it is smaller than the sum of its proper divisors (399322278).

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

231052122 is a wasteful number, since it uses less digits than its factorization.

231052122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 231052122 is about 15200.3987447698. The cubic root of 231052122 is about 613.6253890922.

The spelling of 231052122 in words is "two hundred thirty-one million, fifty-two thousand, one hundred twenty-two".