Search a number
-
+
12131323342 = 234717480293
BaseRepresentation
bin10110100110001010…
…10100110111001110
31011022110020002002221
423103011110313032
5144321104321332
65323440205554
7606424355425
oct132305246716
934273202087
1012131323342
1151658a7866
1224269098ba
1311b4424748
148312442bc
154b0061297
hex2d3154dce

12131323342 has 8 divisors (see below), whose sum is σ = 18249426936. Its totient is φ = 6048181032.

The previous prime is 12131323327. The next prime is 12131323349. The reversal of 12131323342 is 24332313121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131323349) 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, 8739453 + ... + 8740840.

It is an arithmetic number, because the mean of its divisors is an integer number (2281178367).

Almost surely, 212131323342 is an apocalyptic number.

12131323342 is a deficient number, since it is larger than the sum of its proper divisors (6118103594).

12131323342 is a wasteful number, since it uses less digits than its factorization.

12131323342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17480642.

The product of its digits is 2592, while the sum is 25.

Adding to 12131323342 its reverse (24332313121), we get a palindrome (36463636463).

The spelling of 12131323342 in words is "twelve billion, one hundred thirty-one million, three hundred twenty-three thousand, three hundred forty-two".

Divisors: 1 2 347 694 17480293 34960586 6065661671 12131323342