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13131564023411 = 16319218046691
BaseRepresentation
bin1011111100010110111000…
…1101010111111001110011
31201111100212021102101200022
42333011232031113321303
53210121420342222121
643532320210114055
72523503253345641
oct277055615277163
951440767371608
1013131564023411
114203079608859
121580b9a27b92b
137433bb8aa592
143357dd0dc191
1517b8ae98eaab
hexbf16e357e73

13131564023411 has 4 divisors (see below), whose sum is σ = 13131573702024. Its totient is φ = 13131554344800.

The previous prime is 13131564023377. The next prime is 13131564023437. The reversal of 13131564023411 is 11432046513131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13131564023411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13131564023441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391425 + ... + 5655266.

It is an arithmetic number, because the mean of its divisors is an integer number (3282893425506).

Almost surely, 213131564023411 is an apocalyptic number.

13131564023411 is a deficient number, since it is larger than the sum of its proper divisors (9678613).

13131564023411 is an equidigital number, since it uses as much as digits as its factorization.

13131564023411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9678612.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 13131564023411 in words is "thirteen trillion, one hundred thirty-one billion, five hundred sixty-four million, twenty-three thousand, four hundred eleven".

Divisors: 1 1631921 8046691 13131564023411