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11243034031 = 175231264541
BaseRepresentation
bin10100111100010001…
…10001010110101111
31002000112202022020211
422132020301112233
5141011204042111
65055345123251
7545420132605
oct123610612657
932015668224
1011243034031
11484a443969
122219329527
1310a239b478
14789295875
1545c099521
hex29e2315af

11243034031 has 8 divisors (see below), whose sum is σ = 11927160144. Its totient is φ = 10561438080.

The previous prime is 11243034007. The next prime is 11243034059. The reversal of 11243034031 is 13043034211.

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 11243034031 - 221 = 11240936879 is a prime.

It is a super-2 number, since 2×112430340312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11243033993 and 11243034011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11243031031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623380 + ... + 641161.

It is an arithmetic number, because the mean of its divisors is an integer number (1490895018).

Almost surely, 211243034031 is an apocalyptic number.

11243034031 is a deficient number, since it is larger than the sum of its proper divisors (684126113).

11243034031 is a wasteful number, since it uses less digits than its factorization.

11243034031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265081.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 11243034031 its reverse (13043034211), we get a palindrome (24286068242).

The spelling of 11243034031 in words is "eleven billion, two hundred forty-three million, thirty-four thousand, thirty-one".

Divisors: 1 17 523 8891 1264541 21497197 661354943 11243034031