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12203132311 = 4725524279
BaseRepresentation
bin10110101110101110…
…10000010110010111
31011111110100100111101
423113113100112113
5144443000213221
65334523250531
7611255625136
oct132727202627
934443310441
1012203132311
1151a2393a17
122446979a47
1311c6277766
1483a9b791d
154b64e7d91
hex2d75d0597

12203132311 has 6 divisors (see below), whose sum is σ = 12468299960. Its totient is φ = 11943489036.

The previous prime is 12203132303. The next prime is 12203132317. The reversal of 12203132311 is 11323130221.

It is not a de Polignac number, because 12203132311 - 23 = 12203132303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203132317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2759931 + ... + 2764348.

Almost surely, 212203132311 is an apocalyptic number.

12203132311 is a deficient number, since it is larger than the sum of its proper divisors (265167649).

12203132311 is an frugal number, since it uses more digits than its factorization.

12203132311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524373 (or 5524326 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12203132311 its reverse (11323130221), we get a palindrome (23526262532).

The spelling of 12203132311 in words is "twelve billion, two hundred three million, one hundred thirty-two thousand, three hundred eleven".

Divisors: 1 47 2209 5524279 259641113 12203132311