1021066413 has 16 divisors (see below), whose sum is σ = 1370380800. Its totient is φ = 676242864.

The previous prime is 1021066367. The next prime is 1021066421. The reversal of 1021066413 is 3146601201.

It is not a de Polignac number, because 1021066413 - 2⁶ = 1021066349 is a prime.

It is a super-4 number, since 4×1021066413⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021061413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669670 + ... + 671192.

It is an arithmetic number, because the mean of its divisors is an integer number (85648800).

Almost surely, 2^1021066413 is an apocalyptic number.

It is an amenable number.

1021066413 is a deficient number, since it is larger than the sum of its proper divisors (349314387).

1021066413 is a wasteful number, since it uses less digits than its factorization.

1021066413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1021066413 is about 31954.1298269879. The cubic root of 1021066413 is about 1006.9733963750.

Adding to 1021066413 its reverse (3146601201), we get a palindrome (4167667614).

The spelling of 1021066413 in words is "one billion, twenty-one million, sixty-six thousand, four hundred thirteen".