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102130331311 = 284507358973
BaseRepresentation
bin101111100011101110…
…0010010111010101111
3100202121122020101102101
41133013130102322233
53133130331100221
6114530143235531
710243612330651
oct1370734227257
9322548211371
10102130331311
113a349a00598
12179632a8ba7
139827c8a308
144d2bd646d1
1529cb293d91
hex17c7712eaf

102130331311 has 4 divisors (see below), whose sum is σ = 102130974792. Its totient is φ = 102129687832.

The previous prime is 102130331291. The next prime is 102130331321. The reversal of 102130331311 is 113133031201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 113133031201 = 367213080881.

It is a cyclic number.

It is not a de Polignac number, because 102130331311 - 217 = 102130200239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102130331321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105021 + ... + 463993.

It is an arithmetic number, because the mean of its divisors is an integer number (25532743698).

Almost surely, 2102130331311 is an apocalyptic number.

102130331311 is a deficient number, since it is larger than the sum of its proper divisors (643481).

102130331311 is an equidigital number, since it uses as much as digits as its factorization.

102130331311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643480.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 102130331311 its reverse (113133031201), we get a palindrome (215263362512).

The spelling of 102130331311 in words is "one hundred two billion, one hundred thirty million, three hundred thirty-one thousand, three hundred eleven".

Divisors: 1 284507 358973 102130331311