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131030130023 = 1310079240771
BaseRepresentation
bin111101000001000000…
…0010001110101100111
3110112012201022021100122
41322002000101311213
54121322203130043
6140105554232155
712316022504612
oct1720200216547
9415181267318
10131030130023
115062a102061
122148988565b
13c482430c20
1464b021b179
15361d4e7368
hex1e82011d67

131030130023 has 4 divisors (see below), whose sum is σ = 141109370808. Its totient is φ = 120950889240.

The previous prime is 131030130017. The next prime is 131030130031. The reversal of 131030130023 is 320031030131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320031030131 = 383835590157.

It is a cyclic number.

It is not a de Polignac number, because 131030130023 - 28 = 131030129767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131030129983 and 131030130010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131030130013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5039620373 + ... + 5039620398.

It is an arithmetic number, because the mean of its divisors is an integer number (35277342702).

Almost surely, 2131030130023 is an apocalyptic number.

131030130023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131030130023 is a deficient number, since it is larger than the sum of its proper divisors (10079240785).

131030130023 is a wasteful number, since it uses less digits than its factorization.

131030130023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10079240784.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 131030130023 its reverse (320031030131), we get a palindrome (451061160154).

The spelling of 131030130023 in words is "one hundred thirty-one billion, thirty million, one hundred thirty thousand, twenty-three".

Divisors: 1 13 10079240771 131030130023