1021001413 has 4 divisors (see below), whose sum is σ = 1021109760. Its totient is φ = 1020893068.

The previous prime is 1021001411. The next prime is 1021001437. The reversal of 1021001413 is 3141001201.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1021001413 - 2¹ = 1021001411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021001393 and 1021001402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021001411) 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 3 ways as a sum of consecutive naturals, for example, 38533 + ... + 59386.

It is an arithmetic number, because the mean of its divisors is an integer number (255277440).

Almost surely, 2^1021001413 is an apocalyptic number.

It is an amenable number.

1021001413 is a deficient number, since it is larger than the sum of its proper divisors (108347).

1021001413 is an equidigital number, since it uses as much as digits as its factorization.

1021001413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108346.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1021001413 is about 31953.1127278705. The cubic root of 1021001413 is about 1006.9520283037.

Adding to 1021001413 its reverse (3141001201), we get a palindrome (4162002614).

The spelling of 1021001413 in words is "one billion, twenty-one million, one thousand, four hundred thirteen".