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231202231002223 = 1381139175598533
BaseRepresentation
bin110100100100011011110110…
…110110011010010001101111
31010022121201101000001120201221
4310210123312312122101233
5220301004132114032343
62135420501051244211
766461544546640525
oct6444336666322157
91108551330046657
10231202231002223
1167739351a75488
1221b2065b449667
139c0137a280690
144114367926315
151bae1798465ed
hexd246f6d9a46f

231202231002223 has 16 divisors (see below), whose sum is σ = 249357719018016. Its totient is φ = 213099834752640.

The previous prime is 231202231002209. The next prime is 231202231002263. The reversal of 231202231002223 is 322200132202132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-231202231002223 is a prime.

It is a super-2 number, since 2×2312022310022232 (a number of 30 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 (231202231002263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38497665 + ... + 44096197.

It is an arithmetic number, because the mean of its divisors is an integer number (15584857438626).

Almost surely, 2231202231002223 is an apocalyptic number.

231202231002223 is a deficient number, since it is larger than the sum of its proper divisors (18155488015793).

231202231002223 is a wasteful number, since it uses less digits than its factorization.

231202231002223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603274.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 231202231002223 its reverse (322200132202132), we get a palindrome (553402363204355).

The spelling of 231202231002223 in words is "two hundred thirty-one trillion, two hundred two billion, two hundred thirty-one million, two thousand, two hundred twenty-three".

Divisors: 1 13 811 3917 10543 50921 3176687 5598533 41296931 72780929 4540410263 21929453761 59025333419 285082898893 17784787000171 231202231002223