121487811 has 8 divisors (see below), whose sum is σ = 162113280. Its totient is φ = 80927112.

The previous prime is 121487801. The next prime is 121487813. The reversal of 121487811 is 118784121.

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

It is not a de Polignac number, because 121487811 - 2¹⁰ = 121486787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121487813) 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, 11631 + ... + 19448.

It is an arithmetic number, because the mean of its divisors is an integer number (20264160).

Almost surely, 2^121487811 is an apocalyptic number.

121487811 is a deficient number, since it is larger than the sum of its proper divisors (40625469).

121487811 is a wasteful number, since it uses less digits than its factorization.

121487811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32385.

The product of its digits is 3584, while the sum is 33.

The square root of 121487811 is about 11022.1509243886. The cubic root of 121487811 is about 495.2725241502.

The spelling of 121487811 in words is "one hundred twenty-one million, four hundred eighty-seven thousand, eight hundred eleven".