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10103303131 = 28373561263
BaseRepresentation
bin10010110100011010…
…00010101111011011
3222002010010222101021
421122031002233123
5131142421200011
64350312503311
7505240442155
oct113215025733
928063128337
1010103303131
1143150621a9
121b5b6aab37
13c5021959c
146bbb73ad5
153e1eb6471
hex25a342bdb

10103303131 has 4 divisors (see below), whose sum is σ = 10106867232. Its totient is φ = 10099739032.

The previous prime is 10103303129. The next prime is 10103303141. The reversal of 10103303131 is 13130330101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10103303131 - 21 = 10103303129 is a prime.

It is a super-2 number, since 2×101033031312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10103303101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1777795 + ... + 1783468.

It is an arithmetic number, because the mean of its divisors is an integer number (2526716808).

Almost surely, 210103303131 is an apocalyptic number.

10103303131 is a deficient number, since it is larger than the sum of its proper divisors (3564101).

10103303131 is an equidigital number, since it uses as much as digits as its factorization.

10103303131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564100.

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 10103303131 its reverse (13130330101), we get a palindrome (23233633232).

The spelling of 10103303131 in words is "ten billion, one hundred three million, three hundred three thousand, one hundred thirty-one".

Divisors: 1 2837 3561263 10103303131