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313111012001 = 487642938423
BaseRepresentation
bin1001000111001101101…
…11101110001010100001
31002221012020121110001012
410203212313232022201
520112222404341001
6355501411350305
731423116455204
oct4434667561241
91087166543035
10313111012001
11110876004707
12508242b2395
13236ac1cb488
141122452793b
15822873d2bb
hex48e6dee2a1

313111012001 has 4 divisors (see below), whose sum is σ = 313753950912. Its totient is φ = 312468073092.

The previous prime is 313111011977. The next prime is 313111012013. The reversal of 313111012001 is 100210111313.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100210111313 = 137708470101.

It is a cyclic number.

It is not a de Polignac number, because 313111012001 - 26 = 313111011937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313111012061) 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, 321468725 + ... + 321469698.

It is an arithmetic number, because the mean of its divisors is an integer number (78438487728).

Almost surely, 2313111012001 is an apocalyptic number.

It is an amenable number.

313111012001 is a deficient number, since it is larger than the sum of its proper divisors (642938911).

313111012001 is an equidigital number, since it uses as much as digits as its factorization.

313111012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642938910.

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

Adding to 313111012001 its reverse (100210111313), we get a palindrome (413321123314).

The spelling of 313111012001 in words is "three hundred thirteen billion, one hundred eleven million, twelve thousand, one".

Divisors: 1 487 642938423 313111012001