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131201100213 = 365366973507
BaseRepresentation
bin111101000110000110…
…0011110100110110101
3110112122122000110100220
41322030030132212311
54122144440201323
6140134542524553
712323166644151
oct1721414364665
9415578013326
10131201100213
1150707667537
1221516b96759
13c4ab992a11
1464c8c04061
15362d51a0e3
hex1e8c31e9b5

131201100213 has 8 divisors (see below), whose sum is σ = 175202696928. Its totient is φ = 87333451824.

The previous prime is 131201100193. The next prime is 131201100229. The reversal of 131201100213 is 312001102131.

It is a happy number.

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

It is not a de Polignac number, because 131201100213 - 220 = 131200051637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131201100192 and 131201100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201100313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33484795 + ... + 33488712.

It is an arithmetic number, because the mean of its divisors is an integer number (21900337116).

Almost surely, 2131201100213 is an apocalyptic number.

It is an amenable number.

131201100213 is a deficient number, since it is larger than the sum of its proper divisors (44001596715).

131201100213 is an equidigital number, since it uses as much as digits as its factorization.

131201100213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66974163.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 131201100213 its reverse (312001102131), we get a palindrome (443202202344).

The spelling of 131201100213 in words is "one hundred thirty-one billion, two hundred one million, one hundred thousand, two hundred thirteen".

Divisors: 1 3 653 1959 66973507 200920521 43733700071 131201100213