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12301101231 = 34100367077
BaseRepresentation
bin10110111010011001…
…11110100010101111
31011202021200200120220
423131030332202233
5200143040214411
65352343142423
7613555430616
oct133514764257
934667620526
1012301101231
115242718471
122473744a13
131210659933
148499da87d
154bedeab06
hex2dd33e8af

12301101231 has 4 divisors (see below), whose sum is σ = 16401468312. Its totient is φ = 8200734152.

The previous prime is 12301101173. The next prime is 12301101233. The reversal of 12301101231 is 13210110321.

It is a happy number.

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 12301101231 - 215 = 12301068463 is a prime.

It is a super-2 number, since 2×123011012312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12301101231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301101233) 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, 2050183536 + ... + 2050183541.

It is an arithmetic number, because the mean of its divisors is an integer number (4100367078).

Almost surely, 212301101231 is an apocalyptic number.

12301101231 is a deficient number, since it is larger than the sum of its proper divisors (4100367081).

12301101231 is an equidigital number, since it uses as much as digits as its factorization.

12301101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100367080.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12301101231 its reverse (13210110321), we get a palindrome (25511211552).

The spelling of 12301101231 in words is "twelve billion, three hundred one million, one hundred one thousand, two hundred thirty-one".

Divisors: 1 3 4100367077 12301101231