121513012 has 24 divisors (see below), whose sum is σ = 222913152. Its totient is φ = 57892800.

The previous prime is 121513003. The next prime is 121513019. The reversal of 121513012 is 210315121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121513019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1564 + ... + 15667.

It is an arithmetic number, because the mean of its divisors is an integer number (9288048).

Almost surely, 2^121513012 is an apocalyptic number.

It is an amenable number.

121513012 is a deficient number, since it is larger than the sum of its proper divisors (101400140).

121513012 is a wasteful number, since it uses less digits than its factorization.

121513012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17319 (or 17317 counting only the distinct ones).

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

The square root of 121513012 is about 11023.2940630285. The cubic root of 121513012 is about 495.3067676402.

Adding to 121513012 its reverse (210315121), we get a palindrome (331828133).

The spelling of 121513012 in words is "one hundred twenty-one million, five hundred thirteen thousand, twelve".