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131201133213 = 381153925661
BaseRepresentation
bin111101000110000110…
…0100110101010011101
3110112122122002010122010
41322030030212222131
54122144442230323
6140134543341433
712323200142313
oct1721414465235
9415578063563
10131201133213
115070768a307
1221516bb1879
13c4ab9a4a47
1464c8c120b3
15362d524c93
hex1e8c326a9d

131201133213 has 8 divisors (see below), whose sum is σ = 175150550176. Its totient is φ = 87359569200.

The previous prime is 131201133211. The next prime is 131201133263. The reversal of 131201133213 is 312331102131.

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 131201133213 - 21 = 131201133211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131201133213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201133211) 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 7 ways as a sum of consecutive naturals, for example, 26960398 + ... + 26965263.

It is an arithmetic number, because the mean of its divisors is an integer number (21893818772).

Almost surely, 2131201133213 is an apocalyptic number.

It is an amenable number.

131201133213 is a deficient number, since it is larger than the sum of its proper divisors (43949416963).

131201133213 is an equidigital number, since it uses as much as digits as its factorization.

131201133213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53926475.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 131201133213 its reverse (312331102131), we get a palindrome (443532235344).

The spelling of 131201133213 in words is "one hundred thirty-one billion, two hundred one million, one hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 3 811 2433 53925661 161776983 43733711071 131201133213