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231032233131 = 3727329402559
BaseRepresentation
bin1101011100101010011…
…0000001110010101011
3211002100000220110112020
43113022212001302223
512241123222430011
6254045034315523
722456123402620
oct3271246016253
9732300813466
10231032233131
1189a86744267
1238938288ba3
1318a2b4c89bb
14b279668347
1560229ea006
hex35ca981cab

231032233131 has 16 divisors (see below), whose sum is σ = 352062873600. Its totient is φ = 132013260288.

The previous prime is 231032233129. The next prime is 231032233151. The reversal of 231032233131 is 131332230132.

231032233131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231032233131 - 21 = 231032233129 is a prime.

It is a super-2 number, since 2×2310322331312 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231032233121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372630 + ... + 775188.

It is an arithmetic number, because the mean of its divisors is an integer number (22003929600).

Almost surely, 2231032233131 is an apocalyptic number.

231032233131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

231032233131 is a deficient number, since it is larger than the sum of its proper divisors (121030640469).

231032233131 is a wasteful number, since it uses less digits than its factorization.

231032233131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429898.

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

Adding to 231032233131 its reverse (131332230132), we get a palindrome (362364463263).

The spelling of 231032233131 in words is "two hundred thirty-one billion, thirty-two million, two hundred thirty-three thousand, one hundred thirty-one".

Divisors: 1 3 7 21 27329 81987 191303 402559 573909 1207677 2817913 8453739 11001534911 33004604733 77010744377 231032233131