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102311221223 = 1910974908661
BaseRepresentation
bin101111101001000111…
…0010101011111100111
3100210002020121112201202
41133102032111133213
53134013133034343
6115000124313115
710251240013541
oct1372216253747
9323066545652
10102311221223
113a432020892
12179b39a279b
1398565b3273
144d47db0691
1529dc0c5db8
hex17d23957e7

102311221223 has 8 divisors (see below), whose sum is σ = 107794217520. Its totient is φ = 96838044480.

The previous prime is 102311221183. The next prime is 102311221237. The reversal of 102311221223 is 322122113201.

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 102311221223 - 220 = 102310172647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102311221195 and 102311221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102311221273) 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 7 ways as a sum of consecutive naturals, for example, 2433488 + ... + 2475173.

It is an arithmetic number, because the mean of its divisors is an integer number (13474277190).

Almost surely, 2102311221223 is an apocalyptic number.

102311221223 is a deficient number, since it is larger than the sum of its proper divisors (5482996297).

102311221223 is a wasteful number, since it uses less digits than its factorization.

102311221223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4909777.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 102311221223 its reverse (322122113201), we get a palindrome (424433334424).

The spelling of 102311221223 in words is "one hundred two billion, three hundred eleven million, two hundred twenty-one thousand, two hundred twenty-three".

Divisors: 1 19 1097 20843 4908661 93264559 5384801117 102311221223