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13213110101 = 21436165707
BaseRepresentation
bin11000100111001000…
…00000111101010101
31021002211210112120012
430103210000331111
5204030024010401
610023042450005
7645301403612
oct142344007525
937084715505
1013213110101
115670502204
122689063905
131327599359
148d4ba1509
15524eea8bb
hex313900f55

13213110101 has 4 divisors (see below), whose sum is σ = 13219277952. Its totient is φ = 13206942252.

The previous prime is 13213110077. The next prime is 13213110149. The reversal of 13213110101 is 10101131231.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2k-13213110101 is a prime.

It is a super-2 number, since 2×132131101012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213110301) 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, 3080711 + ... + 3084996.

It is an arithmetic number, because the mean of its divisors is an integer number (3304819488).

Almost surely, 213213110101 is an apocalyptic number.

It is an amenable number.

13213110101 is a deficient number, since it is larger than the sum of its proper divisors (6167851).

13213110101 is an equidigital number, since it uses as much as digits as its factorization.

13213110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6167850.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 13213110101 its reverse (10101131231), we get a palindrome (23314241332).

The spelling of 13213110101 in words is "thirteen billion, two hundred thirteen million, one hundred ten thousand, one hundred one".

Divisors: 1 2143 6165707 13213110101