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131012031103 = 4321371425733
BaseRepresentation
bin111101000000011101…
…1001111001001111111
3110112011110020202022021
41322000323033021333
54121303034443403
6140104110301011
712315412614232
oct1720073171177
9415143222267
10131012031103
115061a970078
12214837b7767
13c47b764bc5
1464aba69419
15361bb1e8bd
hex1e80ecf27f

131012031103 has 8 divisors (see below), whose sum is σ = 134121648848. Its totient is φ = 127905269184.

The previous prime is 131012031097. The next prime is 131012031131. The reversal of 131012031103 is 301130210131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131012031103 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 (131012037103) 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, 620976 + ... + 804757.

It is an arithmetic number, because the mean of its divisors is an integer number (16765206106).

Almost surely, 2131012031103 is an apocalyptic number.

131012031103 is a deficient number, since it is larger than the sum of its proper divisors (3109617745).

131012031103 is a wasteful number, since it uses less digits than its factorization.

131012031103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427913.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 131012031103 its reverse (301130210131), we get a palindrome (432142241234).

The spelling of 131012031103 in words is "one hundred thirty-one billion, twelve million, thirty-one thousand, one hundred three".

Divisors: 1 43 2137 91891 1425733 61306519 3046791421 131012031103