121023450 has 96 divisors (see below), whose sum is σ = 336198720. Its totient is φ = 32011200.

The previous prime is 121023437. The next prime is 121023479. The reversal of 121023450 is 54320121.

121023450 is a `hidden beast` number, since 1 + 210 + 2 + 3 + 450 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211665 + ... + 212235.

It is an arithmetic number, because the mean of its divisors is an integer number (3502070).

Almost surely, 2^121023450 is an apocalyptic number.

121023450 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 121023450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168099360).

121023450 is an abundant number, since it is smaller than the sum of its proper divisors (215175270).

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

121023450 is a wasteful number, since it uses less digits than its factorization.

121023450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 738 counting only the distinct ones).

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

The square root of 121023450 is about 11001.0658574522. The cubic root of 121023450 is about 494.6406942584.

Adding to 121023450 its reverse (54320121), we get a palindrome (175343571).

The spelling of 121023450 in words is "one hundred twenty-one million, twenty-three thousand, four hundred fifty".