121013236 has 24 divisors (see below), whose sum is σ = 218001896. Its totient is φ = 58734720.

The previous prime is 121013231. The next prime is 121013239. The reversal of 121013236 is 632310121.

It can be written as a sum of positive squares in 4 ways, for example, as 75585636 + 45427600 = 8694^2 + 6740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97210 + ... + 98446.

Almost surely, 2^121013236 is an apocalyptic number.

It is an amenable number.

121013236 is a deficient number, since it is larger than the sum of its proper divisors (96988660).

121013236 is a wasteful number, since it uses less digits than its factorization.

121013236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 121013236 is about 11000.6016199115. The cubic root of 121013236 is about 494.6267784919.

Adding to 121013236 its reverse (632310121), we get a palindrome (753323357).

The spelling of 121013236 in words is "one hundred twenty-one million, thirteen thousand, two hundred thirty-six".