121013152 has 24 divisors (see below), whose sum is σ = 256572036. Its totient is φ = 55852032.

The previous prime is 121013149. The next prime is 121013159. The reversal of 121013152 is 251310121.

It can be written as a sum of positive squares in 2 ways, for example, as 112275216 + 8737936 = 10596^2 + 2956^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (121013159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145033 + ... + 145864.

Almost surely, 2^121013152 is an apocalyptic number.

It is an amenable number.

121013152 is an abundant number, since it is smaller than the sum of its proper divisors (135558884).

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

121013152 is a wasteful number, since it uses less digits than its factorization.

121013152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290920 (or 290912 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 121013152 is about 11000.5978019379. The cubic root of 121013152 is about 494.6266640453.

Adding to 121013152 its reverse (251310121), we get a palindrome (372323273).

The spelling of 121013152 in words is "one hundred twenty-one million, thirteen thousand, one hundred fifty-two".