1021022013 has 8 divisors (see below), whose sum is σ = 1485122976. Its totient is φ = 618801200.

The previous prime is 1021021999. The next prime is 1021022021. The reversal of 1021022013 is 3102201201.

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 1021022013 - 2⁴ = 1021021997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021022013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021022033) 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, 15469998 + ... + 15470063.

It is an arithmetic number, because the mean of its divisors is an integer number (185640372).

Almost surely, 2^1021022013 is an apocalyptic number.

It is an amenable number.

1021022013 is a deficient number, since it is larger than the sum of its proper divisors (464100963).

1021022013 is a wasteful number, since it uses less digits than its factorization.

1021022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30940075.

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

The square root of 1021022013 is about 31953.4350735566. The cubic root of 1021022013 is about 1006.9588004367.

Adding to 1021022013 its reverse (3102201201), we get a palindrome (4123223214).

It can be divided in two parts, 10210 and 22013, that added together give a palindrome (32223).

The spelling of 1021022013 in words is "one billion, twenty-one million, twenty-two thousand, thirteen".