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20303432121301 = 72900490303043
BaseRepresentation
bin1001001110111010000101…
…10110111111101111010101
32122212222201002112100201121
410213131002312333233111
510130122412110340201
6111103133513323541
74163605655343640
oct447350266775725
978788632470647
1020303432121301
11651870113991a
12233ab364065b1
13b437b41a3b44
1450299712ca57
152532139e49a1
hex127742dbfbd5

20303432121301 has 4 divisors (see below), whose sum is σ = 23203922424352. Its totient is φ = 17402941818252.

The previous prime is 20303432121251. The next prime is 20303432121307. The reversal of 20303432121301 is 10312123430302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20303432121301 - 27 = 20303432121173 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 (20303432121307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450245151515 + ... + 1450245151528.

It is an arithmetic number, because the mean of its divisors is an integer number (5800980606088).

Almost surely, 220303432121301 is an apocalyptic number.

It is an amenable number.

20303432121301 is a deficient number, since it is larger than the sum of its proper divisors (2900490303051).

20303432121301 is an equidigital number, since it uses as much as digits as its factorization.

20303432121301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900490303050.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20303432121301 its reverse (10312123430302), we get a palindrome (30615555551603).

The spelling of 20303432121301 in words is "twenty trillion, three hundred three billion, four hundred thirty-two million, one hundred twenty-one thousand, three hundred one".

Divisors: 1 7 2900490303043 20303432121301