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103221123231 = 393373685021
BaseRepresentation
bin110000000100001110…
…1010101100010011111
3100212102122202100122010
41200020131111202133
53142344101420411
6115230310522303
710312626033222
oct1401035254237
9325378670563
10103221123231
113a8596a6716
1218008666393
13996cc65a15
144dd2b875b9
152a41e0b7a6
hex180875589f

103221123231 has 8 divisors (see below), whose sum is σ = 137642941744. Its totient is φ = 68806693440.

The previous prime is 103221123179. The next prime is 103221123259. The reversal of 103221123231 is 132321122301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103221123231 - 214 = 103221106847 is a prime.

It is a super-2 number, since 2×1032211232312 (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 = 103221123198 and 103221123207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103221123931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814500 + ... + 1870521.

It is an arithmetic number, because the mean of its divisors is an integer number (17205367718).

Almost surely, 2103221123231 is an apocalyptic number.

103221123231 is a deficient number, since it is larger than the sum of its proper divisors (34421818513).

103221123231 is an equidigital number, since it uses as much as digits as its factorization.

103221123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694361.

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

Adding to 103221123231 its reverse (132321122301), we get a palindrome (235542245532).

The spelling of 103221123231 in words is "one hundred three billion, two hundred twenty-one million, one hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 3 9337 28011 3685021 11055063 34407041077 103221123231