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115232142131 = 269874269913
BaseRepresentation
bin110101101010001011…
…1101111001100110011
3102000102201121100001222
41223110113233030303
53341443412022011
6124534212415255
711216363022101
oct1532427571463
9360381540058
10115232142131
11449625a3a17
121a3bb01752b
13ab35487ab2
145812032c71
152ee6606ddb
hex1ad45ef333

115232142131 has 4 divisors (see below), whose sum is σ = 115236439032. Its totient is φ = 115227845232.

The previous prime is 115232142097. The next prime is 115232142143. The reversal of 115232142131 is 131241232511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131241232511 = 413201005671.

It is a cyclic number.

It is not a de Polignac number, because 115232142131 - 226 = 115165033267 is a prime.

It is a super-2 number, since 2×1152321421312 (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 115232142131.

It is not an unprimeable number, because it can be changed into a prime (115232142331) 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, 2107970 + ... + 2161943.

It is an arithmetic number, because the mean of its divisors is an integer number (28809109758).

Almost surely, 2115232142131 is an apocalyptic number.

115232142131 is a deficient number, since it is larger than the sum of its proper divisors (4296901).

115232142131 is an equidigital number, since it uses as much as digits as its factorization.

115232142131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4296900.

The product of its digits is 1440, while the sum is 26.

Adding to 115232142131 its reverse (131241232511), we get a palindrome (246473374642).

The spelling of 115232142131 in words is "one hundred fifteen billion, two hundred thirty-two million, one hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 26987 4269913 115232142131