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313211131023 = 3714914815763
BaseRepresentation
bin1001000111011001101…
…01101001010010001111
31002221110020000000112010
410203230311221102033
520112424022143043
6355515345312303
731425443454330
oct4435465512217
91087406000463
10313211131023
111109175775aa
1250851935693
13236c6b841bb
141123394a287
158232418133
hex48ecd6948f

313211131023 has 8 divisors (see below), whose sum is σ = 477274104448. Its totient is φ = 178977789144.

The previous prime is 313211131021. The next prime is 313211131061. The reversal of 313211131023 is 320131112313.

It is a happy number.

313211131023 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 313211131023 - 21 = 313211131021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 14914815763 = 313211131023 / (3 + 1 + 3 + 2 + 1 + 1 + 1 + 3 + 1 + 0 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313211131021) 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, 7457407861 + ... + 7457407902.

It is an arithmetic number, because the mean of its divisors is an integer number (59659263056).

Almost surely, 2313211131023 is an apocalyptic number.

313211131023 is a deficient number, since it is larger than the sum of its proper divisors (164062973425).

313211131023 is a wasteful number, since it uses less digits than its factorization.

313211131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14914815773.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 313211131023 its reverse (320131112313), we get a palindrome (633342243336).

The spelling of 313211131023 in words is "three hundred thirteen billion, two hundred eleven million, one hundred thirty-one thousand, twenty-three".

Divisors: 1 3 7 21 14914815763 44744447289 104403710341 313211131023