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23131102003 = 172923773599
BaseRepresentation
bin10101100010101110…
…001001101100110011
32012201001020201201121
4111202232021230303
5334333030231003
614343135443111
71446132060112
oct254256115463
965631221647
1023131102003
11989a9a4329
124596686497
1322482a2409
141196097c79
15905aa9cbd
hex562b89b33

23131102003 has 48 divisors (see below), whose sum is σ = 26451921600. Its totient is φ = 20137807872.

The previous prime is 23131101997. The next prime is 23131102021. The reversal of 23131102003 is 30020113132.

It is not a de Polignac number, because 23131102003 - 25 = 23131101971 is a prime.

It is a super-2 number, since 2×231311020032 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23131102103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38615898 + ... + 38616496.

It is an arithmetic number, because the mean of its divisors is an integer number (551081700).

Almost surely, 223131102003 is an apocalyptic number.

23131102003 is a deficient number, since it is larger than the sum of its proper divisors (3320819597).

23131102003 is a wasteful number, since it uses less digits than its factorization.

23131102003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23131102003 its reverse (30020113132), we get a palindrome (53151215135).

The spelling of 23131102003 in words is "twenty-three billion, one hundred thirty-one million, one hundred two thousand, three".

Divisors: 1 17 29 37 73 493 599 629 841 1073 1241 2117 2701 10183 14297 17371 18241 22163 31117 35989 43727 45917 61393 78329 295307 376771 503759 528989 642727 743359 1043681 1268083 1331593 1617899 2271541 8563903 10926359 18639083 21557411 27504283 36774407 38616197 46919071 316864411 625164919 797624207 1360653059 23131102003