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313031221103 = 5912487424891
BaseRepresentation
bin1001000111000100001…
…11010101111101101111
31002220222200110122111202
410203202013111331233
520112041443033403
6355445441240115
731421130322526
oct4434207257557
91086880418452
10313031221103
11110834a66617
125080163303b
1323698812323
1411217ab74bd
15822172b688
hex48e21d5f6f

313031221103 has 8 divisors (see below), whose sum is σ = 318363077760. Its totient is φ = 307700239320.

The previous prime is 313031221081. The next prime is 313031221123. The reversal of 313031221103 is 301122130313.

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

It is a cyclic number.

It is not a de Polignac number, because 313031221103 - 26 = 313031221039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313031221123) 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, 524288 + ... + 949178.

It is an arithmetic number, because the mean of its divisors is an integer number (39795384720).

Almost surely, 2313031221103 is an apocalyptic number.

313031221103 is a deficient number, since it is larger than the sum of its proper divisors (5331856657).

313031221103 is a wasteful number, since it uses less digits than its factorization.

313031221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437437.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 313031221103 its reverse (301122130313), we get a palindrome (614153351416).

The spelling of 313031221103 in words is "three hundred thirteen billion, thirty-one million, two hundred twenty-one thousand, one hundred three".

Divisors: 1 59 12487 424891 736733 25068569 5305613917 313031221103