Search a number
-
+
131212323303 = 31718114214313
BaseRepresentation
bin111101000110011011…
…1010010100111100111
3110112200102010122112220
41322030313102213213
54122210323321203
6140140023243423
712323364226425
oct1721467224747
9415612118486
10131212323303
1150712a32616
122151a8a9573
13c4b10c21b9
1464ca4c6115
15362e4d5653
hex1e8cdd29e7

131212323303 has 16 divisors (see below), whose sum is σ = 186264370656. Its totient is φ = 81874437120.

The previous prime is 131212323299. The next prime is 131212323397. The reversal of 131212323303 is 303323212131.

It is not a de Polignac number, because 131212323303 - 22 = 131212323299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212323103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7097926 + ... + 7116387.

It is an arithmetic number, because the mean of its divisors is an integer number (11641523166).

Almost surely, 2131212323303 is an apocalyptic number.

131212323303 is a deficient number, since it is larger than the sum of its proper divisors (55052047353).

131212323303 is a wasteful number, since it uses less digits than its factorization.

131212323303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14214514.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 131212323303 its reverse (303323212131), we get a palindrome (434535535434).

The spelling of 131212323303 in words is "one hundred thirty-one billion, two hundred twelve million, three hundred twenty-three thousand, three hundred three".

Divisors: 1 3 17 51 181 543 3077 9231 14214313 42642939 241643321 724929963 2572790653 7718371959 43737441101 131212323303