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313133021223 = 31129327202739
BaseRepresentation
bin1001000111010000010…
…11101011100000100111
31002221020210000122000120
410203220023223200213
520112244023134343
6355503515213023
731423504523061
oct4435013534047
91087223018016
10313133021223
11110887477550
125082b747173
13236b3936299
1411227416731
15822a639683
hex48e82eb827

313133021223 has 16 divisors (see below), whose sum is σ = 471171945600. Its totient is φ = 183233533280.

The previous prime is 313133021189. The next prime is 313133021233. The reversal of 313133021223 is 322120331313.

It is a cyclic number.

It is not a de Polignac number, because 313133021223 - 213 = 313133013031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313133021193 and 313133021202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313133021233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163600413 + ... + 163602326.

It is an arithmetic number, because the mean of its divisors is an integer number (29448246600).

Almost surely, 2313133021223 is an apocalyptic number.

313133021223 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

313133021223 is a deficient number, since it is larger than the sum of its proper divisors (158038924377).

313133021223 is a wasteful number, since it uses less digits than its factorization.

313133021223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327202782.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 313133021223 its reverse (322120331313), we get a palindrome (635253352536).

The spelling of 313133021223 in words is "three hundred thirteen billion, one hundred thirty-three million, twenty-one thousand, two hundred twenty-three".

Divisors: 1 3 11 29 33 87 319 957 327202739 981608217 3599230129 9488879431 10797690387 28466638293 104377673741 313133021223