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131031011203201 = 658747919890919
BaseRepresentation
bin11101110010110000001000…
…111000001001100010000001
3122011221102221110111001122101
4131302300020320021202001
5114133303002332000301
61142402452054110401
736412451415300604
oct3562601070114201
9564842843431571
10131031011203201
1138828a3794207a
121284283064b401
13581622c5763b5
14244dd1307633b
15102363d5ce701
hex772c08e09881

131031011203201 has 4 divisors (see below), whose sum is σ = 131031037681600. Its totient is φ = 131030984724804.

The previous prime is 131031011203159. The next prime is 131031011203229. The reversal of 131031011203201 is 102302110130131.

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 131031011203201 - 227 = 131030876985473 is a prime.

It is a super-3 number, since 3×1310310112032013 (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131031011203501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3357981 + ... + 16532938.

It is an arithmetic number, because the mean of its divisors is an integer number (32757759420400).

Almost surely, 2131031011203201 is an apocalyptic number.

It is an amenable number.

131031011203201 is a deficient number, since it is larger than the sum of its proper divisors (26478399).

131031011203201 is an equidigital number, since it uses as much as digits as its factorization.

131031011203201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26478398.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 131031011203201 its reverse (102302110130131), we get a palindrome (233333121333332).

The spelling of 131031011203201 in words is "one hundred thirty-one trillion, thirty-one billion, eleven million, two hundred three thousand, two hundred one".

Divisors: 1 6587479 19890919 131031011203201