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12102320302 = 26051160151
BaseRepresentation
bin10110100010101101…
…01100000010101110
31011020102122120102021
423101112230002232
5144241143222202
65320522420354
7605623011442
oct132126540256
934212576367
1012102320302
115150498406
1224190616ba
1311ab40b497
1482b454822
154ac732a37
hex2d15ac0ae

12102320302 has 4 divisors (see below), whose sum is σ = 18153480456. Its totient is φ = 6051160150.

The previous prime is 12102320261. The next prime is 12102320309. The reversal of 12102320302 is 20302320121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20302320121 = 26975473309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102320309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025580074 + ... + 3025580077.

It is an arithmetic number, because the mean of its divisors is an integer number (4538370114).

Almost surely, 212102320302 is an apocalyptic number.

12102320302 is a deficient number, since it is larger than the sum of its proper divisors (6051160154).

12102320302 is an equidigital number, since it uses as much as digits as its factorization.

12102320302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051160153.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12102320302 its reverse (20302320121), we get a palindrome (32404640423).

The spelling of 12102320302 in words is "twelve billion, one hundred two million, three hundred twenty thousand, three hundred two".

Divisors: 1 2 6051160151 12102320302