Search a number
-
+
102201331321 = 436140499623
BaseRepresentation
bin101111100101110101…
…1001000111001111001
3100202210120211120010101
41133023223020321321
53133302020100241
6114541201115401
710245433661035
oct1371353107171
9322716746111
10102201331321
113a385a94991
1217983028b61
1398398b905b
144d375671c5
1529d261ae31
hex17cbac8e79

102201331321 has 16 divisors (see below), whose sum is σ = 106329801600. Its totient is φ = 98153637120.

The previous prime is 102201331319. The next prime is 102201331333. The reversal of 102201331321 is 123133102201.

It is a cyclic number.

It is not a de Polignac number, because 102201331321 - 21 = 102201331319 is a prime.

It is a super-2 number, since 2×1022013313212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102201331021) 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, 10615716 + ... + 10625338.

It is an arithmetic number, because the mean of its divisors is an integer number (6645612600).

Almost surely, 2102201331321 is an apocalyptic number.

It is an amenable number.

102201331321 is a deficient number, since it is larger than the sum of its proper divisors (4128470279).

102201331321 is an equidigital number, since it uses as much as digits as its factorization.

102201331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13776.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 102201331321 its reverse (123133102201), we get a palindrome (225334433522).

The spelling of 102201331321 in words is "one hundred two billion, two hundred one million, three hundred thirty-one thousand, three hundred twenty-one".

Divisors: 1 43 61 2623 4049 9623 174107 246989 413789 587003 10620527 25241129 38963527 1675431661 2376775147 102201331321