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12010203031 = 194017512099
BaseRepresentation
bin10110010111101110…
…10010011110010111
31011000000022112021111
423023313102132113
5144044102444111
65303432155451
7603424020121
oct131367223627
934000275244
1012010203031
1151034a0332
1223b2238b87
1311952c7918
1481d116211
154a45d8a21
hex2cbdd2797

12010203031 has 16 divisors (see below), whose sum is σ = 12696768000. Its totient is φ = 11329200000.

The previous prime is 12010202921. The next prime is 12010203059. The reversal of 12010203031 is 13030201021.

It is a cyclic number.

It is not a de Polignac number, because 12010203031 - 223 = 12001814423 is a prime.

It is a super-2 number, since 2×120102030312 (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 (12010200031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5720820 + ... + 5722918.

It is an arithmetic number, because the mean of its divisors is an integer number (793548000).

Almost surely, 212010203031 is an apocalyptic number.

12010203031 is a deficient number, since it is larger than the sum of its proper divisors (686564969).

12010203031 is a wasteful number, since it uses less digits than its factorization.

12010203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12010203031 its reverse (13030201021), we get a palindrome (25040404052).

The spelling of 12010203031 in words is "twelve billion, ten million, two hundred three thousand, thirty-one".

Divisors: 1 19 401 751 2099 7619 14269 39881 301151 841699 1576349 5721869 15992281 29950631 632115949 12010203031