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1311210040103 = 17536091438751
BaseRepresentation
bin10011000101001010001…
…101010110101100100111
311122100110111000111022122
4103011022031112230213
5132440324232240403
62442210033420155
7163506002306135
oct23051215265447
94570414014278
101311210040103
11466098980247
1219215570a65b
13968536b2c72
144766a2d2755
1524193153838
hex1314a356b27

1311210040103 has 8 divisors (see below), whose sum is σ = 1388366904960. Its totient is φ = 1234056160000.

The previous prime is 1311210040093. The next prime is 1311210040109. The reversal of 1311210040103 is 3010400121131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311210040103 - 26 = 1311210040039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311210040109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191978 + ... + 1630728.

It is an arithmetic number, because the mean of its divisors is an integer number (173545863120).

Almost surely, 21311210040103 is an apocalyptic number.

1311210040103 is a deficient number, since it is larger than the sum of its proper divisors (77156864857).

1311210040103 is a wasteful number, since it uses less digits than its factorization.

1311210040103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492377.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1311210040103 its reverse (3010400121131), we get a palindrome (4321610161234).

The spelling of 1311210040103 in words is "one trillion, three hundred eleven billion, two hundred ten million, forty thousand, one hundred three".

Divisors: 1 17 53609 911353 1438751 24458767 77130002359 1311210040103