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203302123231 = 1912391863539
BaseRepresentation
bin1011110101010111000…
…0000011011011011111
3201102202110210220222211
42331111300003123133
511312330320420411
6233221250021251
720455005351304
oct2752560033337
9642673726884
10203302123231
1179246826269
1233499577827
131622c495a4c
149ba88910ab
15544d2e6221
hex2f55c036df

203302123231 has 8 divisors (see below), whose sum is σ = 214019753600. Its totient is φ = 192586244760.

The previous prime is 203302123229. The next prime is 203302123253. The reversal of 203302123231 is 132321203302.

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 203302123231 - 21 = 203302123229 is a prime.

It is a super-2 number, since 2×2033021232312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203302123631) 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, 196341 + ... + 667198.

It is an arithmetic number, because the mean of its divisors is an integer number (26752469200).

Almost surely, 2203302123231 is an apocalyptic number.

203302123231 is a deficient number, since it is larger than the sum of its proper divisors (10717630369).

203302123231 is a wasteful number, since it uses less digits than its factorization.

203302123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875949.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 203302123231 its reverse (132321203302), we get a palindrome (335623326533).

The spelling of 203302123231 in words is "two hundred three billion, three hundred two million, one hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 19 12391 235429 863539 16407241 10700111749 203302123231