Search a number
-
+
121231341041 = 221621547021
BaseRepresentation
bin111000011100111110…
…0110111010111110001
3102120220211011012212012
41300321330313113301
53441240210403131
6131405400212305
711521140252656
oct1607174672761
9376824135765
10121231341041
1147460a27948
121b5b416a095
13b580333035
145c20ab3c2d
15324813252b
hex1c39f375f1

121231341041 has 4 divisors (see below), whose sum is σ = 121232109684. Its totient is φ = 121230572400.

The previous prime is 121231341037. The next prime is 121231341053. The reversal of 121231341041 is 140143132121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 101965901041 + 19265440000 = 319321^2 + 138800^2 .

It is a cyclic number.

It is not a de Polignac number, because 121231341041 - 22 = 121231341037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121231340998 and 121231341016.

It is not an unprimeable number, because it can be changed into a prime (121231341541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51890 + ... + 495131.

It is an arithmetic number, because the mean of its divisors is an integer number (30308027421).

Almost surely, 2121231341041 is an apocalyptic number.

It is an amenable number.

121231341041 is a deficient number, since it is larger than the sum of its proper divisors (768643).

121231341041 is an equidigital number, since it uses as much as digits as its factorization.

121231341041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768642.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 121231341041 its reverse (140143132121), we get a palindrome (261374473162).

The spelling of 121231341041 in words is "one hundred twenty-one billion, two hundred thirty-one million, three hundred forty-one thousand, forty-one".

Divisors: 1 221621 547021 121231341041