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131013030223 = 887147703529
BaseRepresentation
bin111101000000011111…
…1000011000101001111
3110112011112010111211201
41322000333003011033
54121303313431343
6140104143530331
712315424245145
oct1720077030517
9415145114751
10131013030223
1150620492799
1221483bb99a7
13c47ba248ba
1464abc49595
15361bc6a94d
hex1e80fc314f

131013030223 has 4 divisors (see below), whose sum is σ = 131160734640. Its totient is φ = 130865325808.

The previous prime is 131013030209. The next prime is 131013030227. The reversal of 131013030223 is 322030310131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131013030223 - 217 = 131012899151 is a prime.

It is a super-2 number, since 2×1310130302232 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131013030223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131013030227) 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 3 ways as a sum of consecutive naturals, for example, 73850878 + ... + 73852651.

It is an arithmetic number, because the mean of its divisors is an integer number (32790183660).

Almost surely, 2131013030223 is an apocalyptic number.

131013030223 is a deficient number, since it is larger than the sum of its proper divisors (147704417).

131013030223 is an equidigital number, since it uses as much as digits as its factorization.

131013030223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147704416.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131013030223 its reverse (322030310131), we get a palindrome (453043340354).

The spelling of 131013030223 in words is "one hundred thirty-one billion, thirteen million, thirty thousand, two hundred twenty-three".

Divisors: 1 887 147703529 131013030223