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131222210323 = 792881357649
BaseRepresentation
bin111101000110101110…
…1000000011100010011
3110112201002201221222211
41322031131000130103
54122220341212243
6140141015212551
712323544245521
oct1721535003423
9415632657884
10131222210323
1150718575906
1221522077157
13c4b31744c9
1464cb93b311
1536302d9d9d
hex1e8d740713

131222210323 has 8 divisors (see below), whose sum is σ = 132890168000. Its totient is φ = 129554425728.

The previous prime is 131222210321. The next prime is 131222210341. The reversal of 131222210323 is 323012222131.

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

It is a cyclic number.

It is not a de Polignac number, because 131222210323 - 21 = 131222210321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131222210294 and 131222210303.

It is not an unprimeable number, because it can be changed into a prime (131222210321) 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, 2247403 + ... + 2305051.

It is an arithmetic number, because the mean of its divisors is an integer number (16611271000).

Almost surely, 2131222210323 is an apocalyptic number.

131222210323 is a deficient number, since it is larger than the sum of its proper divisors (1667957677).

131222210323 is an equidigital number, since it uses as much as digits as its factorization.

131222210323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86541.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 131222210323 its reverse (323012222131), we get a palindrome (454234432454).

The spelling of 131222210323 in words is "one hundred thirty-one billion, two hundred twenty-two million, two hundred ten thousand, three hundred twenty-three".

Divisors: 1 79 28813 57649 2276227 4554271 1661040637 131222210323