1021133413 has 8 divisors (see below), whose sum is σ = 1082110680. Its totient is φ = 961873920.

The previous prime is 1021133383. The next prime is 1021133419. The reversal of 1021133413 is 3143311201.

It can be written as a sum of positive squares in 4 ways, for example, as 184362084 + 836771329 = 13578^2 + 28927^2 .

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 1021133413 - 2¹³ = 1021125221 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 (1021133419) 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, 428220 + ... + 430597.

It is an arithmetic number, because the mean of its divisors is an integer number (135263835).

Almost surely, 2^1021133413 is an apocalyptic number.

It is an amenable number.

1021133413 is a deficient number, since it is larger than the sum of its proper divisors (60977267).

1021133413 is an equidigital number, since it uses as much as digits as its factorization.

1021133413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858887.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1021133413 is about 31955.1781875802. The cubic root of 1021133413 is about 1006.9954209763.

Adding to 1021133413 its reverse (3143311201), we get a palindrome (4164444614).

The spelling of 1021133413 in words is "one billion, twenty-one million, one hundred thirty-three thousand, four hundred thirteen".