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131110423 = 1014392957
BaseRepresentation
bin1111101000010…
…01011000010111
3100010201002200121
413310021120113
5232031013143
621002052411
73151264063
oct764113027
9303632617
10131110423
1168010224
1237aaa107
1321217042
14135acaa3
15b79c7ed
hex7d09617

131110423 has 8 divisors (see below), whose sum is σ = 132755040. Its totient is φ = 129472800.

The previous prime is 131110391. The next prime is 131110429. The reversal of 131110423 is 324011131.

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 131110423 - 25 = 131110391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131110397 and 131110406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131110429) 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, 42861 + ... + 45817.

It is an arithmetic number, because the mean of its divisors is an integer number (16594380).

Almost surely, 2131110423 is an apocalyptic number.

131110423 is a deficient number, since it is larger than the sum of its proper divisors (1644617).

131110423 is a wasteful number, since it uses less digits than its factorization.

131110423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 131110423 is about 11450.3459773057. The cubic root of 131110423 is about 508.0179677754.

Adding to 131110423 its reverse (324011131), we get a palindrome (455121554).

The spelling of 131110423 in words is "one hundred thirty-one million, one hundred ten thousand, four hundred twenty-three".

Divisors: 1 101 439 2957 44339 298657 1298123 131110423