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13122110101 = 107122636543
BaseRepresentation
bin11000011100010001…
…11000001010010101
31020212111120021000211
430032020320022111
5203333230010401
610010032205421
7643115044522
oct141610701225
936774507024
1013122110101
1156240a85a1
122662699871
1313117871b9
148c6a74149
1551c022951
hex30e238295

13122110101 has 4 divisors (see below), whose sum is σ = 13244746752. Its totient is φ = 12999473452.

The previous prime is 13122110033. The next prime is 13122110107. The reversal of 13122110101 is 10101122131.

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 not a de Polignac number, because 13122110101 - 221 = 13120012949 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 (13122110107) 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, 61318165 + ... + 61318378.

It is an arithmetic number, because the mean of its divisors is an integer number (3311186688).

Almost surely, 213122110101 is an apocalyptic number.

It is an amenable number.

13122110101 is a deficient number, since it is larger than the sum of its proper divisors (122636651).

13122110101 is a wasteful number, since it uses less digits than its factorization.

13122110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122636650.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 13122110101 its reverse (10101122131), we get a palindrome (23223232232).

The spelling of 13122110101 in words is "thirteen billion, one hundred twenty-two million, one hundred ten thousand, one hundred one".

Divisors: 1 107 122636543 13122110101