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12012002003231 = 19738660419613
BaseRepresentation
bin1010111011001100001100…
…0111001100100100011111
31120112100002001222001001122
42232303003013030210133
53033301040003100411
641314123150401155
72346560415241406
oct256630307144437
946470061861048
1012012002003231
113911296a8453a
12142000b2001bb
1369195b0a6149
142d755399c63d
1515c6d69399db
hexaecc31cc91f

12012002003231 has 8 divisors (see below), whose sum is σ = 12817421028720. Its totient is φ = 11223903817152.

The previous prime is 12012002003213. The next prime is 12012002003237. The reversal of 12012002003231 is 13230020021021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12012002003231 - 222 = 12011997808927 is a prime.

It is a super-2 number, since 2×120120020032312 (a number of 27 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 (12012002003237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4330208420 + ... + 4330211193.

It is an arithmetic number, because the mean of its divisors is an integer number (1602177628590).

Almost surely, 212012002003231 is an apocalyptic number.

12012002003231 is a deficient number, since it is larger than the sum of its proper divisors (805419025489).

12012002003231 is an equidigital number, since it uses as much as digits as its factorization.

12012002003231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8660419705.

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

Adding to 12012002003231 its reverse (13230020021021), we get a palindrome (25242022024252).

The spelling of 12012002003231 in words is "twelve trillion, twelve billion, two million, three thousand, two hundred thirty-one".

Divisors: 1 19 73 1387 8660419613 164547972647 632210631749 12012002003231