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103132311321 = 31318471431737
BaseRepresentation
bin110000000001100101…
…0100010111100011001
3100212012110122020121010
41200003022202330121
53142203332430241
6115213415204133
710310500116324
oct1400312427431
9325173566533
10103132311321
113a813556a46
1217ba2976649
13995773b7b0
144dc50697bb
152a39216d16
hex18032a2f19

103132311321 has 16 divisors (see below), whose sum is σ = 148167702144. Its totient is φ = 63431631744.

The previous prime is 103132311319. The next prime is 103132311341. The reversal of 103132311321 is 123113231301.

It is a happy number.

It is not a de Polignac number, because 103132311321 - 21 = 103132311319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103132311311) 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, 643836 + ... + 787901.

It is an arithmetic number, because the mean of its divisors is an integer number (9260481384).

Almost surely, 2103132311321 is an apocalyptic number.

It is an amenable number.

103132311321 is a deficient number, since it is larger than the sum of its proper divisors (45035390823).

103132311321 is a wasteful number, since it uses less digits than its factorization.

103132311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433600.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 103132311321 its reverse (123113231301), we get a palindrome (226245542622).

The spelling of 103132311321 in words is "one hundred three billion, one hundred thirty-two million, three hundred eleven thousand, three hundred twenty-one".

Divisors: 1 3 13 39 1847 5541 24011 72033 1431737 4295211 18612581 55837743 2644418239 7933254717 34377437107 103132311321