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231201300023 = 395533584531
BaseRepresentation
bin1101011101010010101…
…0111101111000110111
3211002202211000221200222
43113110222331320313
512242000013100043
6254113514124555
722463245424201
oct3272452757067
9732684027628
10231201300023
118a063119771
1238984a2075b
1318a57542395
14b293cb7771
156032793d68
hex35d4abde37

231201300023 has 4 divisors (see below), whose sum is σ = 231202280088. Its totient is φ = 231200319960.

The previous prime is 231201300019. The next prime is 231201300049. The reversal of 231201300023 is 320003102132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 231201300023 - 22 = 231201300019 is a prime.

It is a super-2 number, since 2×2312013000232 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231201299974 and 231201300010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231201300053) 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, 103268 + ... + 687798.

It is an arithmetic number, because the mean of its divisors is an integer number (57800570022).

Almost surely, 2231201300023 is an apocalyptic number.

231201300023 is a deficient number, since it is larger than the sum of its proper divisors (980065).

231201300023 is an equidigital number, since it uses as much as digits as its factorization.

231201300023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980064.

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

Adding to 231201300023 its reverse (320003102132), we get a palindrome (551204402155).

The spelling of 231201300023 in words is "two hundred thirty-one billion, two hundred one million, three hundred thousand, twenty-three".

Divisors: 1 395533 584531 231201300023