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131121213070 = 2513112121307
BaseRepresentation
bin111101000011101101…
…1101110111010001110
3110112110001200202210211
41322013123232322032
54122014012304240
6140123010353034
712321206631061
oct1720733567216
9415401622724
10131121213070
1150676563101
12214b428b77a
13c498271b13
1464bc36a8d8
1536264d9bea
hex1e876eee8e

131121213070 has 8 divisors (see below), whose sum is σ = 236018183544. Its totient is φ = 52448485224.

The previous prime is 131121213037. The next prime is 131121213071. The reversal of 131121213070 is 70312121131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131121213071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6556060644 + ... + 6556060663.

It is an arithmetic number, because the mean of its divisors is an integer number (29502272943).

Almost surely, 2131121213070 is an apocalyptic number.

131121213070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131121213070 is a deficient number, since it is larger than the sum of its proper divisors (104896970474).

131121213070 is a wasteful number, since it uses less digits than its factorization.

131121213070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13112121314.

The product of its (nonzero) digits is 252, while the sum is 22.

The spelling of 131121213070 in words is "one hundred thirty-one billion, one hundred twenty-one million, two hundred thirteen thousand, seventy".

Divisors: 1 2 5 10 13112121307 26224242614 65560606535 131121213070