1013020401 has 4 divisors (see below), whose sum is σ = 1350693872. Its totient is φ = 675346932.

The previous prime is 1013020289. The next prime is 1013020409. The reversal of 1013020401 is 1040203101.

It is a happy number.

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.

It is not a de Polignac number, because 1013020401 - 2¹¹ = 1013018353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013020409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168836731 + ... + 168836736.

It is an arithmetic number, because the mean of its divisors is an integer number (337673468).

Almost surely, 2^1013020401 is an apocalyptic number.

It is an amenable number.

1013020401 is a deficient number, since it is larger than the sum of its proper divisors (337673471).

1013020401 is an equidigital number, since it uses as much as digits as its factorization.

1013020401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337673470.

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

The square root of 1013020401 is about 31827.9814157291. The cubic root of 1013020401 is about 1004.3214319916.

Adding to 1013020401 its reverse (1040203101), we get a palindrome (2053223502).

The spelling of 1013020401 in words is "one billion, thirteen million, twenty thousand, four hundred one".