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131031000103 = 1097331639999
BaseRepresentation
bin111101000001000001…
…1100110010000100111
3110112012202221110212211
41322002003212100213
54121322414000403
6140110025024251
712316033060363
oct1720203462047
9415182843784
10131031000103
115062a646833
122148a025087
13c482676c73
1464b03a62a3
15361d61a06d
hex1e820e6427

131031000103 has 8 divisors (see below), whose sum is σ = 132413600000. Its totient is φ = 129651681888.

The previous prime is 131031000073. The next prime is 131031000157. The reversal of 131031000103 is 301000130131.

It is a happy number.

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 131031000103 - 213 = 131030991911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131031000203) 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, 740103 + ... + 899896.

It is an arithmetic number, because the mean of its divisors is an integer number (16551700000).

Almost surely, 2131031000103 is an apocalyptic number.

131031000103 is a deficient number, since it is larger than the sum of its proper divisors (1382599897).

131031000103 is a wasteful number, since it uses less digits than its factorization.

131031000103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640841.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 131031000103 its reverse (301000130131), we get a palindrome (432031130234).

The spelling of 131031000103 in words is "one hundred thirty-one billion, thirty-one million, one hundred three", and thus it is an aban number.

Divisors: 1 109 733 79897 1639999 178759891 1202119267 131031000103