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12102012001 = 1011311974643
BaseRepresentation
bin10110100010101011…
…00000110001100001
31011020102001220111201
423101111200301201
5144241103341001
65320512041201
7605620255552
oct132125406141
934212056451
1012102012001
1151502a7812
122418b33201
1311ab331061
1482b3b4329
154ac6c1501
hex2d1560c61

12102012001 has 16 divisors (see below), whose sum is σ = 12380309568. Its totient is φ = 11827816000.

The previous prime is 12102011989. The next prime is 12102012023. The reversal of 12102012001 is 10021020121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12102012001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102015001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2604186 + ... + 2608828.

It is an arithmetic number, because the mean of its divisors is an integer number (773769348).

Almost surely, 212102012001 is an apocalyptic number.

It is an amenable number.

12102012001 is a deficient number, since it is larger than the sum of its proper divisors (278297567).

12102012001 is a wasteful number, since it uses less digits than its factorization.

12102012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5072.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12102012001 its reverse (10021020121), we get a palindrome (22123032122).

The spelling of 12102012001 in words is "twelve billion, one hundred two million, twelve thousand, one".

Divisors: 1 101 131 197 4643 13231 19897 25807 468943 608233 914671 2606507 61431533 92381771 119821901 12102012001