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31011130301 = 47659811283
BaseRepresentation
bin11100111000011010…
…000100101110111101
32222001012220122101112
4130320122010232331
51002002322132201
622125112051405
72145325154414
oct347032045675
988035818345
1031011130301
1112173a7a208
126015693b65
132c029cb458
14170285247b
15c177a80bb
hex738684bbd

31011130301 has 4 divisors (see below), whose sum is σ = 31670941632. Its totient is φ = 30351318972.

The previous prime is 31011130289. The next prime is 31011130373. The reversal of 31011130301 is 10303111013.

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 a cyclic number.

It is not a de Polignac number, because 31011130301 - 210 = 31011129277 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 (31011130001) 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, 329905595 + ... + 329905688.

It is an arithmetic number, because the mean of its divisors is an integer number (7917735408).

Almost surely, 231011130301 is an apocalyptic number.

It is an amenable number.

31011130301 is a deficient number, since it is larger than the sum of its proper divisors (659811331).

31011130301 is an equidigital number, since it uses as much as digits as its factorization.

31011130301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659811330.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31011130301 its reverse (10303111013), we get a palindrome (41314241314).

The spelling of 31011130301 in words is "thirty-one billion, eleven million, one hundred thirty thousand, three hundred one".

Divisors: 1 47 659811283 31011130301