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123132232201 = 1111193839291
BaseRepresentation
bin111001010101101000…
…0001100001000001001
3102202211022000111022111
41302223100030020021
54004133322412301
6132322143022321
711616221463466
oct1625320141011
9382738014274
10123132232201
1148246a31580
121ba4489a9a1
13b7c40b93c4
145d6133066d
153309e69551
hex1cab40c209

123132232201 has 4 divisors (see below), whose sum is σ = 134326071504. Its totient is φ = 111938392900.

The previous prime is 123132232187. The next prime is 123132232259. The reversal of 123132232201 is 102232231321.

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 123132232201 - 213 = 123132224009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123132232271) 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, 5596919635 + ... + 5596919656.

It is an arithmetic number, because the mean of its divisors is an integer number (33581517876).

Almost surely, 2123132232201 is an apocalyptic number.

123132232201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123132232201 is a deficient number, since it is larger than the sum of its proper divisors (11193839303).

123132232201 is a wasteful number, since it uses less digits than its factorization.

123132232201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11193839302.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123132232201 its reverse (102232231321), we get a palindrome (225364463522).

The spelling of 123132232201 in words is "one hundred twenty-three billion, one hundred thirty-two million, two hundred thirty-two thousand, two hundred one".

Divisors: 1 11 11193839291 123132232201