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102312211323 = 3729168000347
BaseRepresentation
bin101111101001001001…
…0000111001101111011
3100210002022110211220010
41133102102013031323
53134013411230243
6115000201433003
710251251306250
oct1372222071573
9323068424803
10102312211323
113a432637753
12179b419b763
13985686bb1a
144d4818b427
1529dc21e433
hex17d248737b

102312211323 has 16 divisors (see below), whose sum is σ = 161280334080. Its totient is φ = 56448116256.

The previous prime is 102312211321. The next prime is 102312211361. The reversal of 102312211323 is 323112213201.

It is not a de Polignac number, because 102312211323 - 21 = 102312211321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 102312211323.

It is not an unprimeable number, because it can be changed into a prime (102312211321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83999565 + ... + 84000782.

It is an arithmetic number, because the mean of its divisors is an integer number (10080020880).

Almost surely, 2102312211323 is an apocalyptic number.

102312211323 is a deficient number, since it is larger than the sum of its proper divisors (58968122757).

102312211323 is a wasteful number, since it uses less digits than its factorization.

102312211323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168000386.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 102312211323 its reverse (323112213201), we get a palindrome (425424424524).

The spelling of 102312211323 in words is "one hundred two billion, three hundred twelve million, two hundred eleven thousand, three hundred twenty-three".

Divisors: 1 3 7 21 29 87 203 609 168000347 504001041 1176002429 3528007287 4872010063 14616030189 34104070441 102312211323