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13013210101 = 31419780971
BaseRepresentation
bin11000001111010010…
…11101001111110101
31020120220122120022111
430013221131033311
5203122340210401
65551142131021
7640323314023
oct140751351765
936526576274
1013013210101
1155786883a1
122632120a71
1312c5048728
148b6407713
155126b0e51
hex307a5d3f5

13013210101 has 4 divisors (see below), whose sum is σ = 13432991104. Its totient is φ = 12593429100.

The previous prime is 13013210081. The next prime is 13013210113. The reversal of 13013210101 is 10101231031.

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 13013210101 - 25 = 13013210069 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 (13013210501) 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, 209890455 + ... + 209890516.

It is an arithmetic number, because the mean of its divisors is an integer number (3358247776).

Almost surely, 213013210101 is an apocalyptic number.

It is an amenable number.

13013210101 is a deficient number, since it is larger than the sum of its proper divisors (419781003).

13013210101 is an equidigital number, since it uses as much as digits as its factorization.

13013210101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419781002.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13013210101 its reverse (10101231031), we get a palindrome (23114441132).

The spelling of 13013210101 in words is "thirteen billion, thirteen million, two hundred ten thousand, one hundred one".

Divisors: 1 31 419780971 13013210101