121023700 has 72 divisors (see below), whose sum is σ = 313229952. Its totient is φ = 39684480.

The previous prime is 121023649. The next prime is 121023703. The reversal of 121023700 is 7320121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121023703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12342 + ... + 19858.

It is an arithmetic number, because the mean of its divisors is an integer number (4350416).

Almost surely, 2^121023700 is an apocalyptic number.

121023700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121023700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156614976).

121023700 is an abundant number, since it is smaller than the sum of its proper divisors (192206252).

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

121023700 is a wasteful number, since it uses less digits than its factorization.

121023700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7561 (or 7554 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 121023700 is about 11001.0772199817. The cubic root of 121023700 is about 494.6410348538.

Adding to 121023700 its reverse (7320121), we get a palindrome (128343821).

The spelling of 121023700 in words is "one hundred twenty-one million, twenty-three thousand, seven hundred".