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2131213102201 = 16728362997159
BaseRepresentation
bin11111000000110110001…
…100110010110001111001
321112202000220110001222001
4133000312030302301321
5234404211023232301
64311022113101001
7306655306320361
oct37006614626171
97482026401861
102131213102201
1175192a265617
122a5062b57761
13125c84869c51
14752190d99a1
153a6875b8c01
hex1f036332c79

2131213102201 has 16 divisors (see below), whose sum is σ = 2152192896000. Its totient is φ = 2110335704208.

The previous prime is 2131213102199. The next prime is 2131213102223. The reversal of 2131213102201 is 1022013121312.

It is a cyclic number.

It is not a de Polignac number, because 2131213102201 - 21 = 2131213102199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131213102231) 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, 297693460 + ... + 297700618.

It is an arithmetic number, because the mean of its divisors is an integer number (134512056000).

Almost surely, 22131213102201 is an apocalyptic number.

It is an amenable number.

2131213102201 is a deficient number, since it is larger than the sum of its proper divisors (20979793799).

2131213102201 is a wasteful number, since it uses less digits than its factorization.

2131213102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13908.

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

Adding to 2131213102201 its reverse (1022013121312), we get a palindrome (3153226223513).

The spelling of 2131213102201 in words is "two trillion, one hundred thirty-one billion, two hundred thirteen million, one hundred two thousand, two hundred one".

Divisors: 1 167 283 6299 7159 47261 1051933 1195553 1782617 2025997 45094541 297697039 338341499 7530788347 12761755103 2131213102201