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131313132020013 = 3197563394650161
BaseRepresentation
bin11101110110110110111000…
…100101101010000100101101
3122012221102010221120110212120
4131312312320211222010231
5114202413243244120023
61143140230422223153
736442026552543606
oct3566667045520455
9565842127513776
10131313132020013
113892764a776419
1212889446284ab9
135836a101c6368
14245d83783adad
15102ab512ec8e3
hex776db896a12d

131313132020013 has 16 divisors (see below), whose sum is σ = 176285491563456. Its totient is φ = 86943008848640.

The previous prime is 131313132019967. The next prime is 131313132020069. The reversal of 131313132020013 is 310020231313131.

It is a cyclic number.

It is not a de Polignac number, because 131313132020013 - 213 = 131313132011821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131313132020113) 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, 196992348 + ... + 197657813.

It is an arithmetic number, because the mean of its divisors is an integer number (11017843222716).

Almost surely, 2131313132020013 is an apocalyptic number.

It is an amenable number.

131313132020013 is a deficient number, since it is larger than the sum of its proper divisors (44972359543443).

131313132020013 is a wasteful number, since it uses less digits than its factorization.

131313132020013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394650924.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 131313132020013 its reverse (310020231313131), we get a palindrome (441333363333144).

The spelling of 131313132020013 in words is "one hundred thirty-one trillion, three hundred thirteen billion, one hundred thirty-two million, twenty thousand, thirteen".

Divisors: 1 3 197 563 591 1689 110911 332733 394650161 1183950483 77746081717 222188040643 233238245151 666564121929 43771044006671 131313132020013