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23313122311231 = 61887294307299
BaseRepresentation
bin1010100110100000000100…
…10111111011110000111111
310001112201020120121021210001
411103100002113323300333
511023430233302424411
6121325522303255131
74624213622014444
oct523200227736077
9101481216537701
1023313122311231
117479048855725
1227462a55aa4a7
13100155846a12c
145a850ad7d9cb
152a6663ceadc1
hex1534025fbc3f

23313122311231 has 8 divisors (see below), whose sum is σ = 23695577198000. Its totient is φ = 22930676216640.

The previous prime is 23313122311217. The next prime is 23313122311249. The reversal of 23313122311231 is 13211322131332.

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 23313122311231 - 221 = 23313120214079 is a prime.

It is a super-2 number, since 2×233131223112312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23313122311231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313122311291) 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, 3258820 + ... + 7566118.

It is an arithmetic number, because the mean of its divisors is an integer number (2961947149750).

Almost surely, 223313122311231 is an apocalyptic number.

23313122311231 is a deficient number, since it is larger than the sum of its proper divisors (382454886769).

23313122311231 is an equidigital number, since it uses as much as digits as its factorization.

23313122311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396089.

The product of its digits is 3888, while the sum is 28.

Adding to 23313122311231 its reverse (13211322131332), we get a palindrome (36524444442563).

The spelling of 23313122311231 in words is "twenty-three trillion, three hundred thirteen billion, one hundred twenty-two million, three hundred eleven thousand, two hundred thirty-one".

Divisors: 1 61 88729 4307299 5412469 262745239 382182332971 23313122311231