201312111010001 has 4 divisors (see below), whose sum is σ = 201312734962752. Its totient is φ = 201311487057252.

The previous prime is 201312111009937. The next prime is 201312111010007. The reversal of 201312111010001 is 100010111213102.

201312111010001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201312111010001 - 2⁶ = 201312111009937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201312111010007) 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, 311492165 + ... + 312137778.

It is an arithmetic number, because the mean of its divisors is an integer number (50328183740688).

Almost surely, 2^{201312111010001} is an apocalyptic number.

It is an amenable number.

201312111010001 is a deficient number, since it is larger than the sum of its proper divisors (623952751).

201312111010001 is an equidigital number, since it uses as much as digits as its factorization.

201312111010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623952750.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 201312111010001 its reverse (100010111213102), we get a palindrome (301322222223103).

The spelling of 201312111010001 in words is "two hundred one trillion, three hundred twelve billion, one hundred eleven million, ten thousand, one".