121302036 has 30 divisors (see below), whose sum is σ = 317108330. Its totient is φ = 40433904.

The previous prime is 121302031. The next prime is 121302043. The reversal of 121302036 is 630203121.

It can be written as a sum of positive squares in only one way, i.e., 104162436 + 17139600 = 10206^2 + 4140^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121302031) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 186871 + ... + 187518.

Almost surely, 2^121302036 is an apocalyptic number.

It is an amenable number.

121302036 is an abundant number, since it is smaller than the sum of its proper divisors (195806294).

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

121302036 is a wasteful number, since it uses less digits than its factorization.

121302036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374405 (or 374394 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 121302036 is about 11013.7203523605. The cubic root of 121302036 is about 495.0199441000.

Adding to 121302036 its reverse (630203121), we get a palindrome (751505157).

The spelling of 121302036 in words is "one hundred twenty-one million, three hundred two thousand, thirty-six".