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101311100231 = 119210100021
BaseRepresentation
bin101111001011010011…
…1001011010101000111
3100200111112201010122112
41132112213023111013
53124441120201411
6114313000251235
710214404100105
oct1362647132507
9320445633575
10101311100231
1139a69525110
1217774a70b1b
139727332cb3
144c91230c75
15297e3bdb8b
hex17969cb547

101311100231 has 4 divisors (see below), whose sum is σ = 110521200264. Its totient is φ = 92101000200.

The previous prime is 101311100227. The next prime is 101311100269. The reversal of 101311100231 is 132001113101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 101311100231 - 22 = 101311100227 is a prime.

It is a super-2 number, since 2×1013111002312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101311100201) 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, 4605050000 + ... + 4605050021.

It is an arithmetic number, because the mean of its divisors is an integer number (27630300066).

Almost surely, 2101311100231 is an apocalyptic number.

101311100231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101311100231 is a deficient number, since it is larger than the sum of its proper divisors (9210100033).

101311100231 is an equidigital number, since it uses as much as digits as its factorization.

101311100231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9210100032.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 101311100231 its reverse (132001113101), we get a palindrome (233312213332).

The spelling of 101311100231 in words is "one hundred one billion, three hundred eleven million, one hundred thousand, two hundred thirty-one".

Divisors: 1 11 9210100021 101311100231