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104020211431 is a prime number
BaseRepresentation
bin110000011100000010…
…1100111011011100111
3100221111100101020120101
41200320011213123213
53201013133231211
6115441454044531
710341501131353
oct1407005473347
9327440336511
10104020211431
1140129774494
12181b01a9747
139a69689886
14506ad56463
152a8c1535c1
hex18381676e7

104020211431 has 2 divisors, whose sum is σ = 104020211432. Its totient is φ = 104020211430.

The previous prime is 104020211413. The next prime is 104020211497. The reversal of 104020211431 is 134112020401.

Together with previous prime (104020211413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104020211431 - 213 = 104020203239 is a prime.

It is a super-2 number, since 2×1040202114312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 104020211399 and 104020211408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104020211131) 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 as a sum of consecutive naturals, namely, 52010105715 + 52010105716.

It is an arithmetic number, because the mean of its divisors is an integer number (52010105716).

Almost surely, 2104020211431 is an apocalyptic number.

104020211431 is a deficient number, since it is larger than the sum of its proper divisors (1).

104020211431 is an equidigital number, since it uses as much as digits as its factorization.

104020211431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 104020211431 its reverse (134112020401), we get a palindrome (238132231832).

The spelling of 104020211431 in words is "one hundred four billion, twenty million, two hundred eleven thousand, four hundred thirty-one".