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12022123031 = 18896364279
BaseRepresentation
bin10110011001001001…
…10000101000010111
31011000211202010102222
423030210300220113
5144110130414111
65304535452555
7603630234242
oct131444605027
934024663388
1012022123031
11510a1a1a76
1223b622715b
13119790c389
1482093a259
154a56907db
hex2cc930a17

12022123031 has 4 divisors (see below), whose sum is σ = 12028489200. Its totient is φ = 12015756864.

The previous prime is 12022123027. The next prime is 12022123079. The reversal of 12022123031 is 13032122021.

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 12022123031 - 22 = 12022123027 is a prime.

It is a super-2 number, since 2×120221230312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022123081) 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, 3180251 + ... + 3184028.

It is an arithmetic number, because the mean of its divisors is an integer number (3007122300).

Almost surely, 212022123031 is an apocalyptic number.

12022123031 is a deficient number, since it is larger than the sum of its proper divisors (6366169).

12022123031 is an equidigital number, since it uses as much as digits as its factorization.

12022123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6366168.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12022123031 its reverse (13032122021), we get a palindrome (25054245052).

The spelling of 12022123031 in words is "twelve billion, twenty-two million, one hundred twenty-three thousand, thirty-one".

Divisors: 1 1889 6364279 12022123031