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23113320331 = 47491772773
BaseRepresentation
bin10101100001101010…
…010100011110001011
32012122210210022212011
4111201222110132023
5334314002222311
614341302400351
71445524660363
oct254152243613
965583708764
1023113320331
119890959732
1245907300b7
1322446b790a
1411939899a3
15904246321
hex561a9478b

23113320331 has 4 divisors (see below), whose sum is σ = 23605093152. Its totient is φ = 22621547512.

The previous prime is 23113320319. The next prime is 23113320383. The reversal of 23113320331 is 13302331132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23113320331 - 215 = 23113287563 is a prime.

It is a super-2 number, since 2×231133203312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23113320031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245886340 + ... + 245886433.

It is an arithmetic number, because the mean of its divisors is an integer number (5901273288).

Almost surely, 223113320331 is an apocalyptic number.

23113320331 is a deficient number, since it is larger than the sum of its proper divisors (491772821).

23113320331 is an equidigital number, since it uses as much as digits as its factorization.

23113320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491772820.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23113320331 its reverse (13302331132), we get a palindrome (36415651463).

The spelling of 23113320331 in words is "twenty-three billion, one hundred thirteen million, three hundred twenty thousand, three hundred thirty-one".

Divisors: 1 47 491772773 23113320331