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20211031042001 = 231725075093941
BaseRepresentation
bin1001001100001101111110…
…10100110110011111010001
32122120011012111121012000022
410212012333110312133101
510122114142421321001
6110552453001433225
74154125122210122
oct446067724663721
978504174535008
1020211031042001
1164924a5139378
12232504949b815
13b37b79aa88a7
144dc30d3b0049
15250b0697c11b
hex1261bf5367d1

20211031042001 has 8 divisors (see below), whose sum is σ = 21089897916864. Its totient is φ = 19332174700080.

The previous prime is 20211031041983. The next prime is 20211031042057. The reversal of 20211031042001 is 10024013011202.

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 20211031042001 - 230 = 20209957300177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20211031042061) 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, 1420691 + ... + 6514631.

It is an arithmetic number, because the mean of its divisors is an integer number (2636237239608).

Almost surely, 220211031042001 is an apocalyptic number.

It is an amenable number.

20211031042001 is a deficient number, since it is larger than the sum of its proper divisors (878866874863).

20211031042001 is a wasteful number, since it uses less digits than its factorization.

20211031042001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5266471.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20211031042001 its reverse (10024013011202), we get a palindrome (30235044053203).

The spelling of 20211031042001 in words is "twenty trillion, two hundred eleven billion, thirty-one million, forty-two thousand, one".

Divisors: 1 23 172507 3967661 5093941 117160643 878740480087 20211031042001