121016135 has 4 divisors (see below), whose sum is σ = 145219368. Its totient is φ = 96812904.

The previous prime is 121016123. The next prime is 121016153. The reversal of 121016135 is 531610121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121016135 - 2¹⁴ = 120999751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12101609 + ... + 12101618.

It is an arithmetic number, because the mean of its divisors is an integer number (36304842).

Almost surely, 2^121016135 is an apocalyptic number.

121016135 is a deficient number, since it is larger than the sum of its proper divisors (24203233).

121016135 is an equidigital number, since it uses as much as digits as its factorization.

121016135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24203232.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 121016135 is about 11000.7333846430. The cubic root of 121016135 is about 494.6307282295.

Adding to 121016135 its reverse (531610121), we get a palindrome (652626256).

The spelling of 121016135 in words is "one hundred twenty-one million, sixteen thousand, one hundred thirty-five".