121123232010 has 128 divisors (see below), whose sum is σ = 352617753600. Its totient is φ = 29341604160.

The previous prime is 121123231969. The next prime is 121123232029. The reversal of 121123232010 is 10232321121.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4223901 + ... + 4252479.

It is an arithmetic number, because the mean of its divisors is an integer number (2754826200).

Almost surely, 2^121123232010 is an apocalyptic number.

121123232010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121123232010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176308876800).

121123232010 is an abundant number, since it is smaller than the sum of its proper divisors (231494521590).

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

121123232010 is a wasteful number, since it uses less digits than its factorization.

121123232010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30033 (or 30027 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121123232010 its reverse (10232321121), we get a palindrome (131355553131).

The spelling of 121123232010 in words is "one hundred twenty-one billion, one hundred twenty-three million, two hundred thirty-two thousand, ten".