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203223320231 = 1911390176541
BaseRepresentation
bin1011110101000100001…
…1011100011010100111
3201102112222112022121012
42331101003130122213
511312200132221411
6233205353012435
720453030502041
oct2752103343247
9642488468535
10203223320231
11792062a2418
12334770b411b
1316219064459
149b9c21aa91
15544642c18b
hex2f510dc6a7

203223320231 has 8 divisors (see below), whose sum is σ = 204304681728. Its totient is φ = 202142140000.

The previous prime is 203223320221. The next prime is 203223320243. The reversal of 203223320231 is 132023322302.

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 203223320231 - 210 = 203223319207 is a prime.

It is a super-2 number, since 2×2032233202312 (a number of 23 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 = 203223320197 and 203223320206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203223320221) 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, 2616821 + ... + 2693361.

It is an arithmetic number, because the mean of its divisors is an integer number (25538085216).

Almost surely, 2203223320231 is an apocalyptic number.

203223320231 is a deficient number, since it is larger than the sum of its proper divisors (1081361497).

203223320231 is a wasteful number, since it uses less digits than its factorization.

203223320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90633.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 203223320231 its reverse (132023322302), we get a palindrome (335246642533).

The spelling of 203223320231 in words is "two hundred three billion, two hundred twenty-three million, three hundred twenty thousand, two hundred thirty-one".

Divisors: 1 191 13901 76541 2655091 14619331 1063996441 203223320231