232121010 has 64 divisors (see below), whose sum is σ = 616356864. Its totient is φ = 55473600.

The previous prime is 232120957. The next prime is 232121011. The reversal of 232121010 is 10121232.

232121010 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (232121011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18477 + ... + 28383.

It is an arithmetic number, because the mean of its divisors is an integer number (9630576).

Almost surely, 2^232121010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232121010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308178432).

232121010 is an abundant number, since it is smaller than the sum of its proper divisors (384235854).

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

232121010 is a wasteful number, since it uses less digits than its factorization.

232121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9999.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 232121010 is about 15235.5180417339. The cubic root of 232121010 is about 614.5701802056.

Adding to 232121010 its reverse (10121232), we get a palindrome (242242242).

The spelling of 232121010 in words is "two hundred thirty-two million, one hundred twenty-one thousand, ten".