121452811 has 16 divisors (see below), whose sum is σ = 135489024. Its totient is φ = 108279424.

The previous prime is 121452797. The next prime is 121452817. The reversal of 121452811 is 118254121.

It is a cyclic number.

It is not a de Polignac number, because 121452811 - 2¹⁵ = 121420043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121452817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40386 + ... + 43288.

It is an arithmetic number, because the mean of its divisors is an integer number (8468064).

Almost surely, 2^121452811 is an apocalyptic number.

121452811 is a deficient number, since it is larger than the sum of its proper divisors (14036213).

121452811 is a wasteful number, since it uses less digits than its factorization.

121452811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050.

The product of its digits is 640, while the sum is 25.

The square root of 121452811 is about 11020.5630981361. The cubic root of 121452811 is about 495.2249577781.

The spelling of 121452811 in words is "one hundred twenty-one million, four hundred fifty-two thousand, eight hundred eleven".