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31233302122 = 211172919115077
BaseRepresentation
bin11101000101101001…
…100101111001101010
32222121200222010211111
4131011221211321222
51002431211131442
622203130020534
72153663454601
oct350551457152
988550863744
1031233302122
1112278426190
126077b7774a
132c39a49579
141724166a38
15c2c041b17
hex745a65e6a

31233302122 has 64 divisors (see below), whose sum is σ = 56278333440. Its totient is φ = 12832691200.

The previous prime is 31233302119. The next prime is 31233302123. The reversal of 31233302122 is 22120333213.

It is a super-2 number, since 2×312333021222 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 31233302093 and 31233302102.

It is not an unprimeable number, because it can be changed into a prime (31233302123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2064048 + ... + 2079124.

It is an arithmetic number, because the mean of its divisors is an integer number (879348960).

Almost surely, 231233302122 is an apocalyptic number.

31233302122 is a deficient number, since it is larger than the sum of its proper divisors (25045031318).

31233302122 is a wasteful number, since it uses less digits than its factorization.

31233302122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15327.

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

Adding to 31233302122 its reverse (22120333213), we get a palindrome (53353635335).

The spelling of 31233302122 in words is "thirty-one billion, two hundred thirty-three million, three hundred two thousand, one hundred twenty-two".

Divisors: 1 2 11 17 22 29 34 58 187 191 319 374 382 493 638 986 2101 3247 4202 5423 5539 6494 10846 11078 15077 30154 35717 60929 71434 94163 121858 165847 188326 256309 331694 437233 512618 874466 1035793 2071586 2819399 2879707 4809563 5638798 5759414 7432961 9619126 14865922 31676777 48955019 63353554 81762571 83511503 97910038 163525142 167023006 538505209 918626533 1077010418 1419695551 1837253066 2839391102 15616651061 31233302122