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20023231300121 = 711443272499689
BaseRepresentation
bin1001000110110000001011…
…00101101100001000011001
32121220012110102020211100202
410203120011211230020121
510111030034203100441
6110330313453311545
74134426223560560
oct443300545541031
977805412224322
1020023231300121
11641a894078725
1222b47777955b5
13b2324b268b7a
144d31b5758bd7
1524acb463419b
hex12360596c219

20023231300121 has 8 divisors (see below), whose sum is σ = 22883722066560. Its totient is φ = 17162747821728.

The previous prime is 20023231300087. The next prime is 20023231300169. The reversal of 20023231300121 is 12100313232002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20023231300121 is a prime.

It is a super-2 number, since 2×200232313001212 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20023231300093 and 20023231300102.

It is not an unprimeable number, because it can be changed into a prime (20023231320121) 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, 6760445 + ... + 9260133.

It is an arithmetic number, because the mean of its divisors is an integer number (2860465258320).

Almost surely, 220023231300121 is an apocalyptic number.

It is an amenable number.

20023231300121 is a deficient number, since it is larger than the sum of its proper divisors (2860490766439).

20023231300121 is a wasteful number, since it uses less digits than its factorization.

20023231300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644023.

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

Adding to 20023231300121 its reverse (12100313232002), we get a palindrome (32123544532123).

The spelling of 20023231300121 in words is "twenty trillion, twenty-three billion, two hundred thirty-one million, three hundred thousand, one hundred twenty-one".

Divisors: 1 7 1144327 2499689 8010289 17497823 2860461614303 20023231300121