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20223023131 = 891607141397
BaseRepresentation
bin10010110101011000…
…101101100000011011
31221012101012000110201
4102311120231200123
5312404043220011
613142413323031
71314100601053
oct226530554033
957171160421
1020223023131
118638407663
123b04796477
131ba396339c
14d9bb7c563
157d5621cc1
hex4b562d81b

20223023131 has 8 divisors (see below), whose sum is σ = 20463118560. Its totient is φ = 19983213888.

The previous prime is 20223023087. The next prime is 20223023137. The reversal of 20223023131 is 13132032202.

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 20223023131 - 27 = 20223023003 is a prime.

It is a super-2 number, since 2×202230231312 (a number of 21 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 = 20223023099 and 20223023108.

It is not an unprimeable number, because it can be changed into a prime (20223023137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72325 + ... + 213721.

It is an arithmetic number, because the mean of its divisors is an integer number (2557889820).

Almost surely, 220223023131 is an apocalyptic number.

20223023131 is a deficient number, since it is larger than the sum of its proper divisors (240095429).

20223023131 is a wasteful number, since it uses less digits than its factorization.

20223023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143093.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20223023131 its reverse (13132032202), we get a palindrome (33355055333).

The spelling of 20223023131 in words is "twenty billion, two hundred twenty-three million, twenty-three thousand, one hundred thirty-one".

Divisors: 1 89 1607 141397 143023 12584333 227224979 20223023131