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13131201301 = 20036555767
BaseRepresentation
bin11000011101010111…
…00011101100010101
31020220010200010210221
430032223203230111
5203343041420201
610010555114341
7643255240501
oct141653435425
936803603727
1013131201301
115629247989
1226657429b1
13131361b1ca
148c7d5d301
1551cc1b4a1
hex30eae3b15

13131201301 has 4 divisors (see below), whose sum is σ = 13137759072. Its totient is φ = 13124643532.

The previous prime is 13131201263. The next prime is 13131201311. The reversal of 13131201301 is 10310213131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10310213131 = 45659225809.

It is a cyclic number.

It is not a de Polignac number, because 13131201301 - 213 = 13131193109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131201311) 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, 3275881 + ... + 3279886.

It is an arithmetic number, because the mean of its divisors is an integer number (3284439768).

Almost surely, 213131201301 is an apocalyptic number.

It is an amenable number.

13131201301 is a deficient number, since it is larger than the sum of its proper divisors (6557771).

13131201301 is an equidigital number, since it uses as much as digits as its factorization.

13131201301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6557770.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 13131201301 its reverse (10310213131), we get a palindrome (23441414432).

The spelling of 13131201301 in words is "thirteen billion, one hundred thirty-one million, two hundred one thousand, three hundred one".

Divisors: 1 2003 6555767 13131201301