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132323131221 = 344107710407
BaseRepresentation
bin111101100111100010…
…0101011111101010101
3110122112211022112112220
41323033010223331111
54131444210144341
6140442143532553
712363043025451
oct1731704537525
9418484275486
10132323131221
1151132a59a96
122178a8ba159
13c62a2883a8
146593c39661
153696ca3a66
hex1ecf12bf55

132323131221 has 4 divisors (see below), whose sum is σ = 176430841632. Its totient is φ = 88215420812.

The previous prime is 132323131211. The next prime is 132323131223. The reversal of 132323131221 is 122131323231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 132323131221 - 213 = 132323123029 is a prime.

It is a super-2 number, since 2×1323231312212 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 132323131191 and 132323131200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132323131223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22053855201 + ... + 22053855206.

It is an arithmetic number, because the mean of its divisors is an integer number (44107710408).

Almost surely, 2132323131221 is an apocalyptic number.

It is an amenable number.

132323131221 is a deficient number, since it is larger than the sum of its proper divisors (44107710411).

132323131221 is an equidigital number, since it uses as much as digits as its factorization.

132323131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44107710410.

The product of its digits is 1296, while the sum is 24.

Adding to 132323131221 its reverse (122131323231), we get a palindrome (254454454452).

The spelling of 132323131221 in words is "one hundred thirty-two billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 3 44107710407 132323131221