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101212331313 = 333737443771
BaseRepresentation
bin101111001000010111…
…0011001110100110001
3100200020122212011011110
41132100232121310301
53124240324100223
6114255111303533
710212064423062
oct1362056316461
9320218764143
10101212331313
1139a187a4605
121774797aba9
13970ca30952
144c82080569
1529758add93
hex1790b99d31

101212331313 has 4 divisors (see below), whose sum is σ = 134949775088. Its totient is φ = 67474887540.

The previous prime is 101212331291. The next prime is 101212331323. The reversal of 101212331313 is 313133212101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 101212331313 - 28 = 101212331057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101212331313.

It is not an unprimeable number, because it can be changed into a prime (101212331323) 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 in 3 ways as a sum of consecutive naturals, for example, 16868721883 + ... + 16868721888.

It is an arithmetic number, because the mean of its divisors is an integer number (33737443772).

Almost surely, 2101212331313 is an apocalyptic number.

It is an amenable number.

101212331313 is a deficient number, since it is larger than the sum of its proper divisors (33737443775).

101212331313 is an equidigital number, since it uses as much as digits as its factorization.

101212331313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33737443774.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 101212331313 its reverse (313133212101), we get a palindrome (414345543414).

The spelling of 101212331313 in words is "one hundred one billion, two hundred twelve million, three hundred thirty-one thousand, three hundred thirteen".

Divisors: 1 3 33737443771 101212331313