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131102012201 = 235700087487
BaseRepresentation
bin111101000011001001…
…0011111001100101001
3110112101201120021011112
41322012102133030221
54121444103342301
6140121043040105
712320554500626
oct1720622371451
9415351507145
10131102012201
1150666739216
12214a9970035
13c4942ab364
1464b99ad34d
1536249959bb
hex1e8649f329

131102012201 has 4 divisors (see below), whose sum is σ = 136802099712. Its totient is φ = 125401924692.

The previous prime is 131102012137. The next prime is 131102012203. The reversal of 131102012201 is 102210201131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131102012201 - 26 = 131102012137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131102012203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2850043721 + ... + 2850043766.

It is an arithmetic number, because the mean of its divisors is an integer number (34200524928).

Almost surely, 2131102012201 is an apocalyptic number.

It is an amenable number.

131102012201 is a deficient number, since it is larger than the sum of its proper divisors (5700087511).

131102012201 is an equidigital number, since it uses as much as digits as its factorization.

131102012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5700087510.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 131102012201 its reverse (102210201131), we get a palindrome (233312213332).

The spelling of 131102012201 in words is "one hundred thirty-one billion, one hundred two million, twelve thousand, two hundred one".

Divisors: 1 23 5700087487 131102012201