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131101708469 is a prime number
BaseRepresentation
bin111101000011001000…
…1010101000010110101
3110112101200222211112012
41322012101111002311
54121444014132334
6140121032334005
712320552064254
oct1720621250265
9415350884465
10131101708469
1150666550aa6
12214a9844305
13c494203034
1464b993079b
1536249359ce
hex1e864550b5

131101708469 has 2 divisors, whose sum is σ = 131101708470. Its totient is φ = 131101708468.

The previous prime is 131101708457. The next prime is 131101708471. The reversal of 131101708469 is 964807101131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131071513444 + 30195025 = 362038^2 + 5495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131101708469 is a prime.

It is a super-2 number, since 2×1311017084692 (a number of 23 digits) contains 22 as substring.

Together with 131101708471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131101708489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65550854234 + 65550854235.

It is an arithmetic number, because the mean of its divisors is an integer number (65550854235).

Almost surely, 2131101708469 is an apocalyptic number.

It is an amenable number.

131101708469 is a deficient number, since it is larger than the sum of its proper divisors (1).

131101708469 is an equidigital number, since it uses as much as digits as its factorization.

131101708469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 41.

The spelling of 131101708469 in words is "one hundred thirty-one billion, one hundred one million, seven hundred eight thousand, four hundred sixty-nine".