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103102231121 = 293555249349
BaseRepresentation
bin110000000000101011…
…1110011001001010001
3100212010101001000022122
41200001113303021101
53142123132343441
6115210422344025
710306653335051
oct1400127631121
9325111030278
10103102231121
113a7a858127a
1217b9488b015
139951439166
144dc1079561
152a3677434b
hex18015f3251

103102231121 has 4 divisors (see below), whose sum is σ = 106657480500. Its totient is φ = 99546981744.

The previous prime is 103102231081. The next prime is 103102231129. The reversal of 103102231121 is 121132201301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121132201301 = 671807943303.

It can be written as a sum of positive squares in 2 ways, for example, as 82449379600 + 20652851521 = 287140^2 + 143711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103102231121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103102231121.

It is not an unprimeable number, because it can be changed into a prime (103102231129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1777624646 + ... + 1777624703.

It is an arithmetic number, because the mean of its divisors is an integer number (26664370125).

Almost surely, 2103102231121 is an apocalyptic number.

It is an amenable number.

103102231121 is a deficient number, since it is larger than the sum of its proper divisors (3555249379).

103102231121 is an equidigital number, since it uses as much as digits as its factorization.

103102231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555249378.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 103102231121 its reverse (121132201301), we get a palindrome (224234432422).

The spelling of 103102231121 in words is "one hundred three billion, one hundred two million, two hundred thirty-one thousand, one hundred twenty-one".

Divisors: 1 29 3555249349 103102231121