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131222311301 = 978731154943
BaseRepresentation
bin111101000110101110…
…1011001000110000101
3110112201002221002111202
41322031131121012011
54122220402430201
6140141021312245
712323545146104
oct1721535310605
9415632832452
10131222311301
1150718634764
1221522105685
13c4b31ab463
1464cb96603b
153630309c6b
hex1e8d759185

131222311301 has 8 divisors (see below), whose sum is σ = 132591158784. Its totient is φ = 129853791360.

The previous prime is 131222311271. The next prime is 131222311327. The reversal of 131222311301 is 103113222131.

It is a happy number.

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

It is not a de Polignac number, because 131222311301 - 234 = 114042442117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131222311331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769436 + ... + 924378.

It is an arithmetic number, because the mean of its divisors is an integer number (16573894848).

Almost surely, 2131222311301 is an apocalyptic number.

It is an amenable number.

131222311301 is a deficient number, since it is larger than the sum of its proper divisors (1368847483).

131222311301 is an equidigital number, since it uses as much as digits as its factorization.

131222311301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163771.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 131222311301 its reverse (103113222131), we get a palindrome (234335533432).

The spelling of 131222311301 in words is "one hundred thirty-one billion, two hundred twenty-two million, three hundred eleven thousand, three hundred one".

Divisors: 1 97 8731 154943 846907 15029471 1352807333 131222311301