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31132012130323 = 131492107867671
BaseRepresentation
bin1110001010000011111001…
…00001100011000000010011
311002020012011110020020111021
413011001330201203000103
513040031330101132243
6150113503211500311
76362133165625606
oct705017441430023
9132205143206437
1031132012130323
119a130152683a5
1235a9713a57697
13144a975413070
14798b241d433d
1538ec35d606ed
hex1c507c863013

31132012130323 has 12 divisors (see below), whose sum is σ = 33753304716208. Its totient is φ = 28544374306080.

The previous prime is 31132012130299. The next prime is 31132012130467. The reversal of 31132012130323 is 32303121023113.

It is a de Polignac number, because none of the positive numbers 2k-31132012130323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31132012100323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53645223 + ... + 54222448.

Almost surely, 231132012130323 is an apocalyptic number.

31132012130323 is a deficient number, since it is larger than the sum of its proper divisors (2621292585885).

31132012130323 is a wasteful number, since it uses less digits than its factorization.

31132012130323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107867982 (or 107867833 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31132012130323 its reverse (32303121023113), we get a palindrome (63435133153436).

The spelling of 31132012130323 in words is "thirty-one trillion, one hundred thirty-two billion, twelve million, one hundred thirty thousand, three hundred twenty-three".

Divisors: 1 13 149 1937 22201 288613 107867671 1402279723 16072282979 208939678727 2394770163871 31132012130323