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12324001431 = 371493938639
BaseRepresentation
bin10110111101001000…
…10101011010010111
31011210212210010202110
423132210111122113
5200214421021211
65354522042103
7614254166220
oct133644253227
934725703673
1012324001431
115254639755
12247b349333
131215317151
1484ca7c247
154c1e20ea6
hex2de915697

12324001431 has 16 divisors (see below), whose sum is σ = 18905472000. Its totient is φ = 6995021088.

The previous prime is 12324001429. The next prime is 12324001433. The reversal of 12324001431 is 13410042321.

It is an interprime number because it is at equal distance from previous prime (12324001429) and next prime (12324001433).

It is not a de Polignac number, because 12324001431 - 21 = 12324001429 is a prime.

It is a super-2 number, since 2×123240014312 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 12324001398 and 12324001407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12324001433) 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 15 ways as a sum of consecutive naturals, for example, 1966191 + ... + 1972448.

It is an arithmetic number, because the mean of its divisors is an integer number (1181592000).

Almost surely, 212324001431 is an apocalyptic number.

12324001431 is a deficient number, since it is larger than the sum of its proper divisors (6581470569).

12324001431 is a wasteful number, since it uses less digits than its factorization.

12324001431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938798.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12324001431 its reverse (13410042321), we get a palindrome (25734043752).

The spelling of 12324001431 in words is "twelve billion, three hundred twenty-four million, one thousand, four hundred thirty-one".

Divisors: 1 3 7 21 149 447 1043 3129 3938639 11815917 27570473 82711419 586857211 1760571633 4108000477 12324001431