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12102402141 = 321344711349
BaseRepresentation
bin10110100010101110…
…00000000001011101
31011020102210201200100
423101113000001131
5144241203332031
65320524251313
7605623502154
oct132127000135
934212721610
1012102402141
115150543945
1224190a0b39
1311ab4397cb
1482b47659b
154ac74bde6
hex2d15c005d

12102402141 has 6 divisors (see below), whose sum is σ = 17481247550. Its totient is φ = 8068268088.

The previous prime is 12102402133. The next prime is 12102402149. The reversal of 12102402141 is 14120420121.

12102402141 is a `hidden beast` number, since 1 + 210 + 240 + 214 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (12102402133) and next prime (12102402149).

It can be written as a sum of positive squares in only one way, i.e., 9442008900 + 2660393241 = 97170^2 + 51579^2 .

It is not a de Polignac number, because 12102402141 - 23 = 12102402133 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 (12102402149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 672355666 + ... + 672355683.

Almost surely, 212102402141 is an apocalyptic number.

It is an amenable number.

12102402141 is a deficient number, since it is larger than the sum of its proper divisors (5378845409).

12102402141 is a wasteful number, since it uses less digits than its factorization.

12102402141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344711355 (or 1344711352 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12102402141 its reverse (14120420121), we get a palindrome (26222822262).

The spelling of 12102402141 in words is "twelve billion, one hundred two million, four hundred two thousand, one hundred forty-one".

Divisors: 1 3 9 1344711349 4034134047 12102402141