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120132131212 = 22198571844441
BaseRepresentation
bin110111111100001101…
…1101101100110001100
3102111002012210120110001
41233320123231212030
53432012311144322
6131104332254044
711451662160412
oct1577033554614
9374065716401
10120132131212
1146a47502275
121b348011324
13b43669ac12
145b58add2b2
1531d18a5827
hex1bf86ed98c

120132131212 has 24 divisors (see below), whose sum is σ = 221554373040. Its totient is φ = 56838263040.

The previous prime is 120132131183. The next prime is 120132131219. The reversal of 120132131212 is 212131231021.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 120132131212.

It is not an unprimeable number, because it can be changed into a prime (120132131219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857089 + ... + 987352.

It is an arithmetic number, because the mean of its divisors is an integer number (9231432210).

Almost surely, 2120132131212 is an apocalyptic number.

It is an amenable number.

120132131212 is a deficient number, since it is larger than the sum of its proper divisors (101422241828).

120132131212 is a wasteful number, since it uses less digits than its factorization.

120132131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845321 (or 1845319 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 120132131212 its reverse (212131231021), we get a palindrome (332263362233).

The spelling of 120132131212 in words is "one hundred twenty billion, one hundred thirty-two million, one hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 857 1714 3428 16283 32566 65132 1844441 3688882 7377764 35044379 70088758 140177516 1580685937 3161371874 6322743748 30033032803 60066065606 120132131212