Search a number
-
+
2123010213121 = 71717840421959
BaseRepresentation
bin11110111001001101010…
…001010000010100000001
321111221212020021010120101
4132321031101100110001
5234240411103304441
64303144124442401
7306245113031020
oct36711521202401
97457766233511
102123010213121
117493aaa11646
122a35539a9401
1312527829a825
1474a7b8da8b7
153a357393231
hex1ee4d450501

2123010213121 has 8 divisors (see below), whose sum is σ = 2569020762240. Its totient is φ = 1712680507968.

The previous prime is 2123010213067. The next prime is 2123010213139. The reversal of 2123010213121 is 1213120103212.

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

It is a cyclic number.

It is not a de Polignac number, because 2123010213121 - 211 = 2123010211073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123010210121) 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, 8920210861 + ... + 8920211098.

It is an arithmetic number, because the mean of its divisors is an integer number (321127595280).

Almost surely, 22123010213121 is an apocalyptic number.

It is an amenable number.

2123010213121 is a deficient number, since it is larger than the sum of its proper divisors (446010549119).

2123010213121 is a wasteful number, since it uses less digits than its factorization.

2123010213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17840421983.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2123010213121 its reverse (1213120103212), we get a palindrome (3336130316333).

The spelling of 2123010213121 in words is "two trillion, one hundred twenty-three billion, ten million, two hundred thirteen thousand, one hundred twenty-one".

Divisors: 1 7 17 119 17840421959 124882953713 303287173303 2123010213121