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123132023 = 717590289
BaseRepresentation
bin1110101011011…
…01100001110111
322120200202101022
413111231201313
5223010211043
620115051355
73023414330
oct725554167
9276622338
10123132023
1163560a03
12352a0b5b
131c6826b1
14124d3287
15ac23868
hex756d877

123132023 has 4 divisors (see below), whose sum is σ = 140722320. Its totient is φ = 105541728.

The previous prime is 123132019. The next prime is 123132047. The reversal of 123132023 is 320231321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123132023 - 22 = 123132019 is a prime.

It is a super-2 number, since 2×1231320232 = 30322990176145058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123131992 and 123132010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123132073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8795138 + ... + 8795151.

It is an arithmetic number, because the mean of its divisors is an integer number (35180580).

Almost surely, 2123132023 is an apocalyptic number.

123132023 is a deficient number, since it is larger than the sum of its proper divisors (17590297).

123132023 is an equidigital number, since it uses as much as digits as its factorization.

123132023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17590296.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123132023 is about 11096.4869666034. The cubic root of 123132023 is about 497.4968534266.

Adding to 123132023 its reverse (320231321), we get a palindrome (443363344).

The spelling of 123132023 in words is "one hundred twenty-three million, one hundred thirty-two thousand, twenty-three".

Divisors: 1 7 17590289 123132023