121513930 has 16 divisors (see below), whose sum is σ = 230237280. Its totient is φ = 46047312.

The previous prime is 121513921. The next prime is 121513967. The reversal of 121513930 is 39315121.

It is a junction number, because it is equal to n+sod(n) for n = 121513895 and 121513904.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319584 + ... + 319963.

It is an arithmetic number, because the mean of its divisors is an integer number (14389830).

Almost surely, 2^121513930 is an apocalyptic number.

121513930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121513930 is a deficient number, since it is larger than the sum of its proper divisors (108723350).

121513930 is a wasteful number, since it uses less digits than its factorization.

121513930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639573.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 121513930 is about 11023.3357020459. The cubic root of 121513930 is about 495.3080149428.

The spelling of 121513930 in words is "one hundred twenty-one million, five hundred thirteen thousand, nine hundred thirty".