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102313032231 = 334104344077
BaseRepresentation
bin101111101001001010…
…1001111101000100111
3100210002101000112222010
41133102111033220213
53134014114012411
6115000231205303
710251261265464
oct1372225175047
9323071015863
10102313032231
113a433048493
12179b4516833
139856a98677
144d4832266b
1529dc3327a6
hex17d254fa27

102313032231 has 4 divisors (see below), whose sum is σ = 136417376312. Its totient is φ = 68208688152.

The previous prime is 102313032209. The next prime is 102313032253. The reversal of 102313032231 is 132230313201.

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

It is an interprime number because it is at equal distance from previous prime (102313032209) and next prime (102313032253).

It is not a de Polignac number, because 102313032231 - 27 = 102313032103 is a prime.

It is a super-2 number, since 2×1023130322312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102313032198 and 102313032207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102313037231) 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, 17052172036 + ... + 17052172041.

It is an arithmetic number, because the mean of its divisors is an integer number (34104344078).

Almost surely, 2102313032231 is an apocalyptic number.

102313032231 is a deficient number, since it is larger than the sum of its proper divisors (34104344081).

102313032231 is an equidigital number, since it uses as much as digits as its factorization.

102313032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34104344080.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 102313032231 its reverse (132230313201), we get a palindrome (234543345432).

The spelling of 102313032231 in words is "one hundred two billion, three hundred thirteen million, thirty-two thousand, two hundred thirty-one".

Divisors: 1 3 34104344077 102313032231