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12132411231 = 34044137077
BaseRepresentation
bin10110100110010010…
…11110011101011111
31011022112021100102010
423103021132131133
5144321344124411
65323515402303
7606436536213
oct132311363537
934275240363
1012132411231
115166480146
122427153393
1311b4715975
14831448943
154b01c87a6
hex2d325e75f

12132411231 has 4 divisors (see below), whose sum is σ = 16176548312. Its totient is φ = 8088274152.

The previous prime is 12132411217. The next prime is 12132411281. The reversal of 12132411231 is 13211423121.

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

It is not a de Polignac number, because 12132411231 - 215 = 12132378463 is a prime.

It is a super-2 number, since 2×121324112312 (a number of 21 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 = 12132411198 and 12132411207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132411211) 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, 2022068536 + ... + 2022068541.

It is an arithmetic number, because the mean of its divisors is an integer number (4044137078).

Almost surely, 212132411231 is an apocalyptic number.

12132411231 is a deficient number, since it is larger than the sum of its proper divisors (4044137081).

12132411231 is an equidigital number, since it uses as much as digits as its factorization.

12132411231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044137080.

The product of its digits is 288, while the sum is 21.

Adding to 12132411231 its reverse (13211423121), we get a palindrome (25343834352).

The spelling of 12132411231 in words is "twelve billion, one hundred thirty-two million, four hundred eleven thousand, two hundred thirty-one".

Divisors: 1 3 4044137077 12132411231