1001312401 has 4 divisors (see below), whose sum is σ = 1001452032. Its totient is φ = 1001172772.

The previous prime is 1001312381. The next prime is 1001312437. The reversal of 1001312401 is 1042131001.

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 1001312401 - 2¹³ = 1001304209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001312441) 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, 58441 + ... + 73606.

It is an arithmetic number, because the mean of its divisors is an integer number (250363008).

Almost surely, 2^1001312401 is an apocalyptic number.

It is an amenable number.

1001312401 is a deficient number, since it is larger than the sum of its proper divisors (139631).

1001312401 is an equidigital number, since it uses as much as digits as its factorization.

1001312401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139630.

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

The square root of 1001312401 is about 31643.5206795957. The cubic root of 1001312401 is about 1000.4372757620.

Adding to 1001312401 its reverse (1042131001), we get a palindrome (2043443402).

The spelling of 1001312401 in words is "one billion, one million, three hundred twelve thousand, four hundred one".