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201213053321 = 7297243136849
BaseRepresentation
bin1011101101100100111…
…0111000100110001001
3201020100212212011211012
42323121032320212021
511244041020201241
6232234102013305
720352150506420
oct2733116704611
9636325764735
10201213053321
1178374583105
1232bb5a17235
1315c88733bc7
149a4b24c2b7
155379bdc6eb
hex2ed93b8989

201213053321 has 16 divisors (see below), whose sum is σ = 237921936000. Its totient is φ = 166496940288.

The previous prime is 201213053231. The next prime is 201213053339. The reversal of 201213053321 is 123350312102.

It is not a de Polignac number, because 201213053321 - 218 = 201212791177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201213053221) 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, 1401905 + ... + 1538753.

It is an arithmetic number, because the mean of its divisors is an integer number (14870121000).

Almost surely, 2201213053321 is an apocalyptic number.

It is an amenable number.

201213053321 is a deficient number, since it is larger than the sum of its proper divisors (36708882679).

201213053321 is a wasteful number, since it uses less digits than its factorization.

201213053321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144128.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 201213053321 its reverse (123350312102), we get a palindrome (324563365423).

The spelling of 201213053321 in words is "two hundred one billion, two hundred thirteen million, fifty-three thousand, three hundred twenty-one".

Divisors: 1 7 29 203 7243 50701 136849 210047 957943 1470329 3968621 27780347 991197307 6938381149 28744721903 201213053321