121611007 has 8 divisors (see below), whose sum is σ = 143776800. Its totient is φ = 100643424.

The previous prime is 121610987. The next prime is 121611011. The reversal of 121611007 is 700116121.

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

It is not a de Polignac number, because 121611007 - 2¹¹ = 121608959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121611107) 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, 299332 + ... + 299737.

It is an arithmetic number, because the mean of its divisors is an integer number (17972100).

Almost surely, 2^121611007 is an apocalyptic number.

121611007 is a deficient number, since it is larger than the sum of its proper divisors (22165793).

121611007 is an equidigital number, since it uses as much as digits as its factorization.

121611007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599105.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 121611007 is about 11027.7380726965. The cubic root of 121611007 is about 495.4398797076.

Adding to 121611007 its reverse (700116121), we get a palindrome (821727128).

The spelling of 121611007 in words is "one hundred twenty-one million, six hundred eleven thousand, seven".