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31113100230223 = 1111681242142253
BaseRepresentation
bin1110001001100000101010…
…10010010111111001001111
311002011101100110011011200211
413010300111102113321033
513034224112124331343
6150101054432103251
76360563425262614
oct704602522277117
9132141313134624
1031113100230223
119a05a9aa659a0
1235a5b16394b27
131448c502b072b
14797c4c63050b
1538e4ca8c979d
hex1c4c15497e4f

31113100230223 has 8 divisors (see below), whose sum is σ = 33944469734736. Its totient is φ = 28282215033600.

The previous prime is 31113100230169. The next prime is 31113100230259. The reversal of 31113100230223 is 32203200131113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31113100230223 - 237 = 30975661276751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31113100230194 and 31113100230203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113100239223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120942636 + ... + 121199617.

It is an arithmetic number, because the mean of its divisors is an integer number (4243058716842).

Almost surely, 231113100230223 is an apocalyptic number.

31113100230223 is a deficient number, since it is larger than the sum of its proper divisors (2831369504513).

31113100230223 is a wasteful number, since it uses less digits than its factorization.

31113100230223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242153945.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31113100230223 its reverse (32203200131113), we get a palindrome (63316300361336).

The spelling of 31113100230223 in words is "thirty-one trillion, one hundred thirteen billion, one hundred million, two hundred thirty thousand, two hundred twenty-three".

Divisors: 1 11 11681 128491 242142253 2663564783 2828463657293 31113100230223