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31032012131322 = 2336769120394571
BaseRepresentation
bin1110000111001001101000…
…00011110100101111111010
311001212122001021120221121120
413003210310003310233322
513031412030101200242
6145555524244450110
76351663121643166
oct703446403645772
9131778037527546
1031032012131322
119984669933024
1235922660a9936
1314413c9903c17
14793d59173ca6
1538c331b261ec
hex1c39340f4bfa

31032012131322 has 32 divisors (see below), whose sum is σ = 62323201526784. Its totient is φ = 10300889415600.

The previous prime is 31032012131311. The next prime is 31032012131371. The reversal of 31032012131322 is 22313121023013.

It is a junction number, because it is equal to n+sod(n) for n = 31032012131292 and 31032012131301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8675704 + ... + 11718867.

It is an arithmetic number, because the mean of its divisors is an integer number (1947600047712).

Almost surely, 231032012131322 is an apocalyptic number.

31032012131322 is an abundant number, since it is smaller than the sum of its proper divisors (31291189395462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31032012131322 is a wasteful number, since it uses less digits than its factorization.

31032012131322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20395634.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31032012131322 its reverse (22313121023013), we get a palindrome (53345133154335).

The spelling of 31032012131322 in words is "thirty-one trillion, thirty-two billion, twelve million, one hundred thirty-one thousand, three hundred twenty-two".

Divisors: 1 2 3 6 367 691 734 1101 1382 2073 2202 4146 253597 507194 760791 1521582 20394571 40789142 61183713 122367426 7484807557 14092648561 14969615114 22454422671 28185297122 42277945683 44908845342 84555891366 5172002021887 10344004043774 15516006065661 31032012131322