121513000 has 64 divisors (see below), whose sum is σ = 324979200. Its totient is φ = 41659200.

The previous prime is 121512977. The next prime is 121513003. The reversal of 121513000 is 315121.

It is not an unprimeable number, because it can be changed into a prime (121513003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1680 + ... + 15679.

It is an arithmetic number, because the mean of its divisors is an integer number (5077800).

Almost surely, 2^121513000 is an apocalyptic number.

121513000 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 121513000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162489600).

121513000 is an abundant number, since it is smaller than the sum of its proper divisors (203466200).

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

121513000 is a wasteful number, since it uses less digits than its factorization.

121513000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17387 (or 17373 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 121513000 is about 11023.2935187266. The cubic root of 121513000 is about 495.3067513356.

Adding to 121513000 its reverse (315121), we get a palindrome (121828121).

It can be divided in two parts, 12151 and 3000, that added together give a palindrome (15151).

The spelling of 121513000 in words is "one hundred twenty-one million, five hundred thirteen thousand".