1312040401 has 8 divisors (see below), whose sum is σ = 1512745344. Its totient is φ = 1114653120.

The previous prime is 1312040377. The next prime is 1312040413. The reversal of 1312040401 is 1040402131.

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

It is not a de Polignac number, because 1312040401 - 2⁷ = 1312040273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312040101) 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, 828565 + ... + 830146.

It is an arithmetic number, because the mean of its divisors is an integer number (189093168).

Almost surely, 2^1312040401 is an apocalyptic number.

It is an amenable number.

1312040401 is a deficient number, since it is larger than the sum of its proper divisors (200704943).

1312040401 is a wasteful number, since it uses less digits than its factorization.

1312040401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658831.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1312040401 is about 36222.0982412670. The cubic root of 1312040401 is about 1094.7519717906.

Adding to 1312040401 its reverse (1040402131), we get a palindrome (2352442532).

The spelling of 1312040401 in words is "one billion, three hundred twelve million, forty thousand, four hundred one".