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20430013123001 = 1953127159748009
BaseRepresentation
bin1001010010100101110111…
…01011001100100110111001
32200100002102202000111101202
410221102323223030212321
510134211131324414001
6111241230215423545
74206006525166136
oct451227353144671
980302382014352
1020430013123001
116567357886a19
12235b582084bb5
13b52707930351
14508b644c358d
152566715eb96b
hex1294bbacc9b9

20430013123001 has 16 divisors (see below), whose sum is σ = 22083564902400. Its totient is φ = 18840041071488.

The previous prime is 20430013122979. The next prime is 20430013123027. The reversal of 20430013123001 is 10032131003402.

It is a cyclic number.

It is not a de Polignac number, because 20430013123001 - 218 = 20430012860857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20432013123001) 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, 79746116 + ... + 80001893.

It is an arithmetic number, because the mean of its divisors is an integer number (1380222806400).

Almost surely, 220430013123001 is an apocalyptic number.

It is an amenable number.

20430013123001 is a deficient number, since it is larger than the sum of its proper divisors (1653551779399).

20430013123001 is a wasteful number, since it uses less digits than its factorization.

20430013123001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159748208.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20430013123001 its reverse (10032131003402), we get a palindrome (30462144126403).

The spelling of 20430013123001 in words is "twenty trillion, four hundred thirty billion, thirteen million, one hundred twenty-three thousand, one".

Divisors: 1 19 53 127 1007 2413 6731 127889 159748009 3035212171 8466644477 20287997143 160866245063 385471945717 1075263848579 20430013123001