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113321210231 = 1729241918917
BaseRepresentation
bin110100110001001111…
…0000111000101110111
3101211111112211221022102
41221202132013011313
53324040212211411
6124020430452315
711121130252055
oct1514236070567
9354445757272
10113321210231
1144071961559
1219b6706409b
13a8bc5c7468
1456b03211d5
152e33989d3b
hex1a62787177

113321210231 has 24 divisors (see below), whose sum is σ = 124570489680. Its totient is φ = 102726288896.

The previous prime is 113321210209. The next prime is 113321210251. The reversal of 113321210231 is 132012123311.

It is a happy number.

It is not a de Polignac number, because 113321210231 - 222 = 113317015927 is a prime.

It is a super-2 number, since 2×1133212102312 (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 (113321210251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5980985 + ... + 5999901.

It is an arithmetic number, because the mean of its divisors is an integer number (5190437070).

Almost surely, 2113321210231 is an apocalyptic number.

113321210231 is a deficient number, since it is larger than the sum of its proper divisors (11249279449).

113321210231 is a wasteful number, since it uses less digits than its factorization.

113321210231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19411 (or 19382 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 113321210231 its reverse (132012123311), we get a palindrome (245333333542).

The spelling of 113321210231 in words is "one hundred thirteen billion, three hundred twenty-one million, two hundred ten thousand, two hundred thirty-one".

Divisors: 1 17 29 419 493 841 7123 12151 14297 18917 206567 321589 352379 548593 5990443 7926223 9326081 15909197 134745791 229860467 270456349 3907627939 6665953543 113321210231