1013002121 has 4 divisors (see below), whose sum is σ = 1014351744. Its totient is φ = 1011652500.

The previous prime is 1013002099. The next prime is 1013002163. The reversal of 1013002121 is 1212003101.

1013002121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1013002121 - 2⁶ = 1013002057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013002321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673685 + ... + 675186.

It is an arithmetic number, because the mean of its divisors is an integer number (253587936).

Almost surely, 2^1013002121 is an apocalyptic number.

It is an amenable number.

1013002121 is a deficient number, since it is larger than the sum of its proper divisors (1349623).

1013002121 is an equidigital number, since it uses as much as digits as its factorization.

1013002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349622.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1013002121 is about 31827.6942457351. The cubic root of 1013002121 is about 1004.3153909464.

Adding to 1013002121 its reverse (1212003101), we get a palindrome (2225005222).

The spelling of 1013002121 in words is "one billion, thirteen million, two thousand, one hundred twenty-one".