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102312101203 = 137870161631
BaseRepresentation
bin101111101001001000…
…1101100010101010011
3100210002022021020211121
41133102101230111103
53134013344214303
6115000155223111
710251250340224
oct1372221542523
9323068236747
10102312101203
113a432571a44
12179b4147a97
139856830970
144d4815d24b
1529dc1eb9bd
hex17d246c553

102312101203 has 4 divisors (see below), whose sum is σ = 110182262848. Its totient is φ = 94441939560.

The previous prime is 102312101173. The next prime is 102312101207. The reversal of 102312101203 is 302101213201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102312101203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102312101207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3935080803 + ... + 3935080828.

It is an arithmetic number, because the mean of its divisors is an integer number (27545565712).

Almost surely, 2102312101203 is an apocalyptic number.

102312101203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102312101203 is a deficient number, since it is larger than the sum of its proper divisors (7870161645).

102312101203 is an equidigital number, since it uses as much as digits as its factorization.

102312101203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7870161644.

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

Adding to 102312101203 its reverse (302101213201), we get a palindrome (404413314404).

The spelling of 102312101203 in words is "one hundred two billion, three hundred twelve million, one hundred one thousand, two hundred three".

Divisors: 1 13 7870161631 102312101203