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100311000131 = 487205977413
BaseRepresentation
bin101110101101100000…
…0000110010001000011
3100120220211211210020002
41131123000012101003
53120414104001011
6114025432510215
710150541301266
oct1353300062103
9316824753202
10100311000131
11395a5a43101
1217535b4b36b
1395c808c3a4
144bd8498cdd
1529216bcc3b
hex175b006443

100311000131 has 4 divisors (see below), whose sum is σ = 100516978032. Its totient is φ = 100105022232.

The previous prime is 100311000091. The next prime is 100311000149. The reversal of 100311000131 is 131000113001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100311000131 - 234 = 83131130947 is a prime.

It is a super-2 number, since 2×1003110001312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100311000191) 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, 102988220 + ... + 102989193.

It is an arithmetic number, because the mean of its divisors is an integer number (25129244508).

Almost surely, 2100311000131 is an apocalyptic number.

100311000131 is a deficient number, since it is larger than the sum of its proper divisors (205977901).

100311000131 is an equidigital number, since it uses as much as digits as its factorization.

100311000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205977900.

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 100311000131 its reverse (131000113001), we get a palindrome (231311113132).

The spelling of 100311000131 in words is "one hundred billion, three hundred eleven million, one hundred thirty-one", and thus it is an aban number.

Divisors: 1 487 205977413 100311000131