401002313 has 4 divisors (see below), whose sum is σ = 403017600. Its totient is φ = 398987028.

The previous prime is 401002297. The next prime is 401002333. The reversal of 401002313 is 313200104.

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 a cyclic number.

It is not a de Polignac number, because 401002313 - 2⁴ = 401002297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401002333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007345 + ... + 1007742.

It is an arithmetic number, because the mean of its divisors is an integer number (100754400).

Almost surely, 2^401002313 is an apocalyptic number.

It is an amenable number.

401002313 is a deficient number, since it is larger than the sum of its proper divisors (2015287).

401002313 is a wasteful number, since it uses less digits than its factorization.

401002313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015286.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 401002313 is about 20025.0421472715. The cubic root of 401002313 is about 737.4212118456.

Adding to 401002313 its reverse (313200104), we get a palindrome (714202417).

The spelling of 401002313 in words is "four hundred one million, two thousand, three hundred thirteen".