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1231113301 = 11199562409
BaseRepresentation
bin100100101100001…
…0100110001010101
310011210120000221221
41021120110301111
510010131111201
6322055010341
742336201415
oct11130246125
93153500857
101231113301
11581a27710
122a43699b1
13168099112
14b970c645
15731344a1
hex49614c55

1231113301 has 8 divisors (see below), whose sum is σ = 1349784000. Its totient is φ = 1113567840.

The previous prime is 1231113283. The next prime is 1231113329. The reversal of 1231113301 is 1033111321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1231113301 - 215 = 1231080533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231116301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279016 + ... + 283393.

It is an arithmetic number, because the mean of its divisors is an integer number (168723000).

Almost surely, 21231113301 is an apocalyptic number.

1231113301 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1231113301 is a deficient number, since it is larger than the sum of its proper divisors (118670699).

1231113301 is a wasteful number, since it uses less digits than its factorization.

1231113301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562619.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1231113301 is about 35087.2241848796. The cubic root of 1231113301 is about 1071.7644341704.

Adding to 1231113301 its reverse (1033111321), we get a palindrome (2264224622).

The spelling of 1231113301 in words is "one billion, two hundred thirty-one million, one hundred thirteen thousand, three hundred one".

Divisors: 1 11 199 2189 562409 6186499 111919391 1231113301