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12372020311 = 71767431473
BaseRepresentation
bin10111000010110111…
…00000110001010111
31011221020010202021111
423201123200301113
5200314214122221
65403355155451
7615406303030
oct134133406127
934836122244
1012372020311
115279756a82
122493445b87
13122225a8a1
148551bba87
154c6258be1
hex2e16e0c57

12372020311 has 4 divisors (see below), whose sum is σ = 14139451792. Its totient is φ = 10604588832.

The previous prime is 12372020303. The next prime is 12372020333. The reversal of 12372020311 is 11302027321.

It is a happy number.

12372020311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12372020311 - 23 = 12372020303 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 (12372020371) 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, 883715730 + ... + 883715743.

It is an arithmetic number, because the mean of its divisors is an integer number (3534862948).

Almost surely, 212372020311 is an apocalyptic number.

12372020311 is a deficient number, since it is larger than the sum of its proper divisors (1767431481).

12372020311 is an equidigital number, since it uses as much as digits as its factorization.

12372020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767431480.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 12372020311 its reverse (11302027321), we get a palindrome (23674047632).

The spelling of 12372020311 in words is "twelve billion, three hundred seventy-two million, twenty thousand, three hundred eleven".

Divisors: 1 7 1767431473 12372020311