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12102302101 = 48724850723
BaseRepresentation
bin10110100010101101…
…00111100110010101
31011020102121122110011
423101112213212111
5144241142131401
65320522200221
7605622604411
oct132126474625
934212548404
1012102302101
11515048576a
122419053071
1311ab403106
1482b44bd41
154ac72c451
hex2d15a7995

12102302101 has 4 divisors (see below), whose sum is σ = 12127153312. Its totient is φ = 12077450892.

The previous prime is 12102302029. The next prime is 12102302117. The reversal of 12102302101 is 10120320121.

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 12102302101 - 213 = 12102293909 is a prime.

It is a super-2 number, since 2×121023021012 (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 (12102302161) 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, 12424875 + ... + 12425848.

It is an arithmetic number, because the mean of its divisors is an integer number (3031788328).

Almost surely, 212102302101 is an apocalyptic number.

It is an amenable number.

12102302101 is a deficient number, since it is larger than the sum of its proper divisors (24851211).

12102302101 is an equidigital number, since it uses as much as digits as its factorization.

12102302101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24851210.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12102302101 its reverse (10120320121), we get a palindrome (22222622222).

The spelling of 12102302101 in words is "twelve billion, one hundred two million, three hundred two thousand, one hundred one".

Divisors: 1 487 24850723 12102302101