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20201021230103 = 722912602009501
BaseRepresentation
bin1001001011111011010101…
…01100011100110000010111
32122112012100220101001111022
410211331222230130300113
510121433142413330403
6110544115424431355
74153322065211060
oct445755254346027
978465326331438
1020201021230103
11648922893255a
12232311517855b
13b36c4306437c
144dba3dc15567
1525071ccd1d38
hex125f6ab1cc17

20201021230103 has 8 divisors (see below), whose sum is σ = 23187697483680. Its totient is φ = 17239548996000.

The previous prime is 20201021230073. The next prime is 20201021230111. The reversal of 20201021230103 is 30103212010202.

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 20201021230103 - 216 = 20201021164567 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 (20201021230163) 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, 6301003148 + ... + 6301006353.

It is an arithmetic number, because the mean of its divisors is an integer number (2898462185460).

Almost surely, 220201021230103 is an apocalyptic number.

20201021230103 is a deficient number, since it is larger than the sum of its proper divisors (2986676253577).

20201021230103 is a wasteful number, since it uses less digits than its factorization.

20201021230103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12602009737.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20201021230103 its reverse (30103212010202), we get a palindrome (50304233240305).

The spelling of 20201021230103 in words is "twenty trillion, two hundred one billion, twenty-one million, two hundred thirty thousand, one hundred three".

Divisors: 1 7 229 1603 12602009501 88214066507 2885860175729 20201021230103