121008611 has 8 divisors (see below), whose sum is σ = 124485264. Its totient is φ = 117542880.

The previous prime is 121008599. The next prime is 121008653. The reversal of 121008611 is 116800121.

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 121008611 - 2¹⁰ = 121007587 is a prime.

It is a super-2 number, since 2×121008611² = 29286167872298642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121008311) 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, 23201 + ... + 27933.

It is an arithmetic number, because the mean of its divisors is an integer number (15560658).

Almost surely, 2^121008611 is an apocalyptic number.

121008611 is a deficient number, since it is larger than the sum of its proper divisors (3476653).

121008611 is an equidigital number, since it uses as much as digits as its factorization.

121008611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 121008611 is about 11000.3914021275. The cubic root of 121008611 is about 494.6204770380.

Adding to 121008611 its reverse (116800121), we get a palindrome (237808732).

The spelling of 121008611 in words is "one hundred twenty-one million, eight thousand, six hundred eleven".