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20130140023021 = 75415315590183
BaseRepresentation
bin1001001001110111010011…
…10110000110100011101101
32122021102102001212122202101
410210323221312012203231
510114303011321214041
6110451354134255101
74145232430663420
oct444735166064355
978242361778671
1020130140023021
116461165284576
1223114331b7491
13b303581a3212
144d84381759b7
1524d970157b31
hex124ee9d868ed

20130140023021 has 8 divisors (see below), whose sum is σ = 23048399037824. Its totient is φ = 17222512189680.

The previous prime is 20130140022961. The next prime is 20130140023031. The reversal of 20130140023021 is 12032004103102.

It is a happy number.

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

It is not a de Polignac number, because 20130140023021 - 211 = 20130140020973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20130140023021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130140023031) 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, 2657791305 + ... + 2657798878.

It is an arithmetic number, because the mean of its divisors is an integer number (2881049879728).

Almost surely, 220130140023021 is an apocalyptic number.

It is an amenable number.

20130140023021 is a deficient number, since it is larger than the sum of its proper divisors (2918259014803).

20130140023021 is an equidigital number, since it uses as much as digits as its factorization.

20130140023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315590731.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20130140023021 its reverse (12032004103102), we get a palindrome (32162144126123).

The spelling of 20130140023021 in words is "twenty trillion, one hundred thirty billion, one hundred forty million, twenty-three thousand, twenty-one".

Divisors: 1 7 541 3787 5315590183 37209131281 2875734289003 20130140023021