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1313023111211 = 723239242314083
BaseRepresentation
bin10011000110110110010…
…001101011000000101011
311122112010211122001022102
4103012312101223000223
5133003032404024321
62443110002044015
7163601636203550
oct23066621530053
94575124561272
101313023111211
11466939352419
1219258094960b
1396a821cb6c6
144779d00ca27
152424c3dec0b
hex131b646b02b

1313023111211 has 32 divisors (see below), whose sum is σ = 1573153505280. Its totient is φ = 1071493071264.

The previous prime is 1313023111129. The next prime is 1313023111249. The reversal of 1313023111211 is 1121113203131.

It is not a de Polignac number, because 1313023111211 - 218 = 1313022849067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313022111211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93227576 + ... + 93241658.

It is an arithmetic number, because the mean of its divisors is an integer number (49161047040).

Almost surely, 21313023111211 is an apocalyptic number.

1313023111211 is a deficient number, since it is larger than the sum of its proper divisors (260130394069).

1313023111211 is a wasteful number, since it uses less digits than its factorization.

1313023111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16775.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1313023111211 its reverse (1121113203131), we get a palindrome (2434136314342).

The spelling of 1313023111211 in words is "one trillion, three hundred thirteen billion, twenty-three million, one hundred eleven thousand, two hundred eleven".

Divisors: 1 7 23 161 239 1673 2423 5497 14083 16961 38479 55729 98581 323909 390103 579097 2267363 3365837 4053679 13319231 23560859 34123109 77414251 93234617 238861763 541899757 784831507 5493820549 8155423051 57087961357 187574730173 1313023111211