1021202013 has 8 divisors (see below), whose sum is σ = 1466341408. Its totient is φ = 628431984.

The previous prime is 1021201999. The next prime is 1021202069. The reversal of 1021202013 is 3102021201.

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

It is not a de Polignac number, because 1021202013 - 2⁴ = 1021201997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021202013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021202113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13092295 + ... + 13092372.

It is an arithmetic number, because the mean of its divisors is an integer number (183292676).

Almost surely, 2^1021202013 is an apocalyptic number.

1021202013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1021202013 is a deficient number, since it is larger than the sum of its proper divisors (445139395).

1021202013 is a wasteful number, since it uses less digits than its factorization.

1021202013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26184683.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1021202013 is about 31956.2515480148. The cubic root of 1021202013 is about 1007.0179705400.

Adding to 1021202013 its reverse (3102021201), we get a palindrome (4123223214).

The spelling of 1021202013 in words is "one billion, twenty-one million, two hundred two thousand, thirteen".