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1312102103 = 133710192677
BaseRepresentation
bin100111000110101…
…0001011011010111
310101102221200201012
41032031101123113
510141344231403
6334110522435
744341453364
oct11615213327
93342850635
101312102103
11613713804
1230750641b
1317bab45a0
14c639146b
157a2d0ed8
hex4e3516d7

1312102103 has 16 divisors (see below), whose sum is σ = 1453189920. Its totient is φ = 1176840576.

The previous prime is 1312102093. The next prime is 1312102111. The reversal of 1312102103 is 3012012131.

It is a cyclic number.

It is not a de Polignac number, because 1312102103 - 216 = 1312036567 is a prime.

It is a super-2 number, since 2×13121021032 = 3443223857394045218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312102153) 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, 488801 + ... + 491477.

It is an arithmetic number, because the mean of its divisors is an integer number (90824370).

Almost surely, 21312102103 is an apocalyptic number.

1312102103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1312102103 is a deficient number, since it is larger than the sum of its proper divisors (141087817).

1312102103 is a wasteful number, since it uses less digits than its factorization.

1312102103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1312102103 is about 36222.9499488929. The cubic root of 1312102103 is about 1094.7691326766.

Adding to 1312102103 its reverse (3012012131), we get a palindrome (4324114234).

The spelling of 1312102103 in words is "one billion, three hundred twelve million, one hundred two thousand, one hundred three".

Divisors: 1 13 37 481 1019 2677 13247 34801 37703 99049 490139 1287637 2727863 35462219 100930931 1312102103