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23201030203 = 131784694631
BaseRepresentation
bin10101100110111000…
…111010000000111011
32012212220211110011221
4111212320322000323
5340003430431303
614354114332511
71450641334321
oct254670720073
965786743157
1023201030203
11992641642a
1245b5b8a137
132259917350
1411a149bd11
1590bcbe4bd
hex566e3a03b

23201030203 has 4 divisors (see below), whose sum is σ = 24985724848. Its totient is φ = 21416335560.

The previous prime is 23201030197. The next prime is 23201030243. The reversal of 23201030203 is 30203010232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23201030203 - 213 = 23201022011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23201030243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892347303 + ... + 892347328.

It is an arithmetic number, because the mean of its divisors is an integer number (6246431212).

Almost surely, 223201030203 is an apocalyptic number.

23201030203 is a deficient number, since it is larger than the sum of its proper divisors (1784694645).

23201030203 is a wasteful number, since it uses less digits than its factorization.

23201030203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784694644.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 23201030203 its reverse (30203010232), we get a palindrome (53404040435).

The spelling of 23201030203 in words is "twenty-three billion, two hundred one million, thirty thousand, two hundred three".

Divisors: 1 13 1784694631 23201030203