1020401313 has 8 divisors (see below), whose sum is σ = 1370921376. Its totient is φ = 675074400.

The previous prime is 1020401311. The next prime is 1020401321. The reversal of 1020401313 is 3131040201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020401313 - 2¹ = 1020401311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020401292 and 1020401301.

It is not an unprimeable number, because it can be changed into a prime (1020401311) 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, 1297828 + ... + 1298613.

It is an arithmetic number, because the mean of its divisors is an integer number (171365172).

Almost surely, 2^1020401313 is an apocalyptic number.

It is an amenable number.

1020401313 is a deficient number, since it is larger than the sum of its proper divisors (350520063).

1020401313 is a wasteful number, since it uses less digits than its factorization.

1020401313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596575.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1020401313 is about 31943.7210262048. The cubic root of 1020401313 is about 1006.7547088448.

Adding to 1020401313 its reverse (3131040201), we get a palindrome (4151441514).

The spelling of 1020401313 in words is "one billion, twenty million, four hundred one thousand, three hundred thirteen".