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12020100001 = 713132089011
BaseRepresentation
bin10110011000111010…
…00010101110100001
31011000200221100100221
423030131002232201
5144104121200001
65304424243041
7603604110220
oct131435025641
934020840327
1012020100001
115109040048
1223b5610481
131197381610
14820570cb7
154a53e11a1
hex2cc742ba1

12020100001 has 8 divisors (see below), whose sum is σ = 14793969344. Its totient is φ = 9510408720.

The previous prime is 12020099999. The next prime is 12020100007. The reversal of 12020100001 is 10000102021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12020100001 - 21 = 12020099999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is not an unprimeable number, because it can be changed into a prime (12020100007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66044415 + ... + 66044596.

It is an arithmetic number, because the mean of its divisors is an integer number (1849246168).

Almost surely, 212020100001 is an apocalyptic number.

It is an amenable number.

12020100001 is a deficient number, since it is larger than the sum of its proper divisors (2773869343).

12020100001 is a wasteful number, since it uses less digits than its factorization.

12020100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132089031.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 12020100001 its reverse (10000102021), we get a palindrome (22020202022).

The spelling of 12020100001 in words is "twelve billion, twenty million, one hundred thousand, one".

Divisors: 1 7 13 91 132089011 924623077 1717157143 12020100001