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23210102131 = 43539769817
BaseRepresentation
bin10101100111011011…
…100000110101110011
32012220112220100112021
4111213123200311303
5340013241232011
614355041012311
71451111420146
oct254733406563
965815810467
1023210102131
119930552297
1245b9024097
13225b772658
1411a278005d
1590c9b2471
hex5676e0d73

23210102131 has 4 divisors (see below), whose sum is σ = 23749871992. Its totient is φ = 22670332272.

The previous prime is 23210102117. The next prime is 23210102141. The reversal of 23210102131 is 13120101232.

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 23210102131 - 211 = 23210100083 is a prime.

It is a super-2 number, since 2×232101021312 (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 (23210102141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269884866 + ... + 269884951.

It is an arithmetic number, because the mean of its divisors is an integer number (5937467998).

Almost surely, 223210102131 is an apocalyptic number.

23210102131 is a deficient number, since it is larger than the sum of its proper divisors (539769861).

23210102131 is an equidigital number, since it uses as much as digits as its factorization.

23210102131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539769860.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23210102131 its reverse (13120101232), we get a palindrome (36330203363).

The spelling of 23210102131 in words is "twenty-three billion, two hundred ten million, one hundred two thousand, one hundred thirty-one".

Divisors: 1 43 539769817 23210102131