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12421241031 = 359113621031
BaseRepresentation
bin10111001000101110…
…10001100011000111
31012001122202102102010
423210113101203013
5200414314203111
65412314145303
7616544543463
oct134427214307
935048672363
1012421241031
1152a4515261
1224a7a22233
13122c502384
1485b9514a3
154ca72caa6
hex2e45d18c7

12421241031 has 16 divisors (see below), whose sum is σ = 16991435520. Its totient is φ = 8068421760.

The previous prime is 12421241003. The next prime is 12421241033. The reversal of 12421241031 is 13014212421.

12421241031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12421241031 - 25 = 12421240999 is a prime.

It is a super-2 number, since 2×124212410312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12421240989 and 12421241007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421241033) 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 15 ways as a sum of consecutive naturals, for example, 290515 + ... + 330516.

It is an arithmetic number, because the mean of its divisors is an integer number (1061964720).

Almost surely, 212421241031 is an apocalyptic number.

12421241031 is a deficient number, since it is larger than the sum of its proper divisors (4570194489).

12421241031 is a wasteful number, since it uses less digits than its factorization.

12421241031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621206.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12421241031 its reverse (13014212421), we get a palindrome (25435453452).

It can be divided in two parts, 124212410 and 31, that added together give a triangular number (124212441 = T15761).

The spelling of 12421241031 in words is "twelve billion, four hundred twenty-one million, two hundred forty-one thousand, thirty-one".

Divisors: 1 3 59 113 177 339 6667 20001 621031 1863093 36640829 70176503 109922487 210529509 4140413677 12421241031