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311431323134113 = 71319967049256493
BaseRepresentation
bin100011011001111101100000…
…1011000110010100010100001
31111211200112200101011201022121
41012303323001120302202201
5311304442322210242423
63022205324051304241
7122412112340055220
oct10663730130624241
91454615611151277
10311431323134113
1190260311a03026
122ab19587bab081
13104a0b036a7090
1456c94dc1dccb7
15260109b79a45d
hex11b3ec16328a1

311431323134113 has 32 divisors (see below), whose sum is σ = 385233468480000. Its totient is φ = 245164361181696.

The previous prime is 311431323134111. The next prime is 311431323134143.

311431323134113 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 311431323134113 - 21 = 311431323134111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311431323134111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1214062095 + ... + 1214318587.

It is an arithmetic number, because the mean of its divisors is an integer number (12038545890000).

Almost surely, 2311431323134113 is an apocalyptic number.

It is an amenable number.

311431323134113 is a deficient number, since it is larger than the sum of its proper divisors (73802145345887).

311431323134113 is a wasteful number, since it uses less digits than its factorization.

311431323134113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323761.

The product of its digits is 23328, while the sum is 34.

The spelling of 311431323134113 in words is "three hundred eleven trillion, four hundred thirty-one billion, three hundred twenty-three million, one hundred thirty-four thousand, one hundred thirteen".

Divisors: 1 7 13 91 199 1393 2587 18109 67049 256493 469343 871637 1795451 3334409 6101459 13342751 23340863 51042107 93399257 173455763 357294749 663547391 1214190341 4644831737 17197599157 120383194099 223568789041 1564981523287 3422322232243 23956255625701 44490189019159 311431323134113