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101212031203 = 211479677873
BaseRepresentation
bin101111001000010110…
…1010000100011100011
3100200020122021220111021
41132100231100203203
53124240234444303
6114255101030311
710212062033113
oct1362055204343
9320218256437
10101212031203
1139a1860a088
1217747855397
13970c95717a
144c82003043
15297584eebd
hex1790b508e3

101212031203 has 4 divisors (see below), whose sum is σ = 101691709288. Its totient is φ = 100732353120.

The previous prime is 101212031197. The next prime is 101212031227. The reversal of 101212031203 is 302130212101.

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 101212031203 - 29 = 101212030691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101212037203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239838726 + ... + 239839147.

It is an arithmetic number, because the mean of its divisors is an integer number (25422927322).

Almost surely, 2101212031203 is an apocalyptic number.

101212031203 is a deficient number, since it is larger than the sum of its proper divisors (479678085).

101212031203 is an equidigital number, since it uses as much as digits as its factorization.

101212031203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479678084.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 101212031203 its reverse (302130212101), we get a palindrome (403342243304).

The spelling of 101212031203 in words is "one hundred one billion, two hundred twelve million, thirty-one thousand, two hundred three".

Divisors: 1 211 479677873 101212031203