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131211210031042 = 2437919312806893
BaseRepresentation
bin11101110101010111111101…
…100100000111111111000010
3122012120200001211100222102011
4131311113331210013333002
5114144231024231443132
61143021333040243134
736431461050123661
oct3565277544077702
9565520054328364
10131211210031042
11388983a8436589
12128717409104aa
13582a21945454b
14245892942add8
1510281884aeb47
hex7755fd907fc2

131211210031042 has 16 divisors (see below), whose sum is σ = 203943240800640. Its totient is φ = 63268755378192.

The previous prime is 131211210031007. The next prime is 131211210031169. The reversal of 131211210031042 is 240130012112131.

131211210031042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9656396653 + ... + 9656410240.

It is an arithmetic number, because the mean of its divisors is an integer number (12746452550040).

Almost surely, 2131211210031042 is an apocalyptic number.

131211210031042 is a deficient number, since it is larger than the sum of its proper divisors (72732030769598).

131211210031042 is a wasteful number, since it uses less digits than its factorization.

131211210031042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19312807017.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 131211210031042 its reverse (240130012112131), we get a palindrome (371341222143173).

The spelling of 131211210031042 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred ten million, thirty-one thousand, forty-two".

Divisors: 1 2 43 79 86 158 3397 6794 19312806893 38625613786 830450696399 1525711744547 1660901392798 3051423489094 65605605015521 131211210031042