121340501 has 8 divisors (see below), whose sum is σ = 125908440. Its totient is φ = 116840448.

The previous prime is 121340477. The next prime is 121340533. The reversal of 121340501 is 105043121.

It can be written as a sum of positive squares in 4 ways, for example, as 41667025 + 79673476 = 6455^2 + 8926^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121340501 - 2¹⁴ = 121324117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121340501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121340561) 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, 13316 + ... + 20493.

It is an arithmetic number, because the mean of its divisors is an integer number (15738555).

Almost surely, 2^121340501 is an apocalyptic number.

It is an amenable number.

121340501 is a deficient number, since it is larger than the sum of its proper divisors (4567939).

121340501 is an equidigital number, since it uses as much as digits as its factorization.

121340501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33943.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 121340501 is about 11015.4664449582. The cubic root of 121340501 is about 495.0722623476.

Adding to 121340501 its reverse (105043121), we get a palindrome (226383622).

It can be divided in two parts, 1213 and 40501, that added together give a palindrome (41714).

The spelling of 121340501 in words is "one hundred twenty-one million, three hundred forty thousand, five hundred one".