121723150 has 48 divisors (see below), whose sum is σ = 236413440. Its totient is φ = 46569600.

The previous prime is 121723117. The next prime is 121723159. The reversal of 121723150 is 51327121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121723159) 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, 183820 + ... + 184480.

It is an arithmetic number, because the mean of its divisors is an integer number (4925280).

Almost surely, 2^121723150 is an apocalyptic number.

121723150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121723150 is a deficient number, since it is larger than the sum of its proper divisors (114690290).

121723150 is a wasteful number, since it uses less digits than its factorization.

121723150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 121723150 is about 11032.8214886311. The cubic root of 121723150 is about 495.5921220810.

The spelling of 121723150 in words is "one hundred twenty-one million, seven hundred twenty-three thousand, one hundred fifty".