1313211100001 has 4 divisors (see below), whose sum is σ = 1314237849600. Its totient is φ = 1312184350404.

The previous prime is 1313211099973. The next prime is 1313211100079. The reversal of 1313211100001 is 1000011123131.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313211100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313211100301) 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, 513372881 + ... + 513375438.

It is an arithmetic number, because the mean of its divisors is an integer number (328559462400).

Almost surely, 2^{1313211100001} is an apocalyptic number.

It is an amenable number.

1313211100001 is a deficient number, since it is larger than the sum of its proper divisors (1026749599).

1313211100001 is a wasteful number, since it uses less digits than its factorization.

1313211100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026749598.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 1313211100001 its reverse (1000011123131), we get a palindrome (2313222223132).

The spelling of 1313211100001 in words is "one trillion, three hundred thirteen billion, two hundred eleven million, one hundred thousand, one".