121002013 has 8 divisors (see below), whose sum is σ = 138949920. Its totient is φ = 104212080.

The previous prime is 121002001. The next prime is 121002019. The reversal of 121002013 is 310200121.

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 121002013 - 2⁵ = 121001981 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 (121002019) 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, 289270 + ... + 289687.

It is an arithmetic number, because the mean of its divisors is an integer number (17368740).

Almost surely, 2^121002013 is an apocalyptic number.

It is an amenable number.

121002013 is a deficient number, since it is larger than the sum of its proper divisors (17947907).

121002013 is a wasteful number, since it uses less digits than its factorization.

121002013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578987.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 121002013 is about 11000.0914996194. The cubic root of 121002013 is about 494.6114871400.

Adding to 121002013 its reverse (310200121), we get a palindrome (431202134).

The spelling of 121002013 in words is "one hundred twenty-one million, two thousand, thirteen".