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110131020013 = 7445868813
BaseRepresentation
bin110011010010001010…
…0100000000011101101
3101112021012221111001011
41212210110200003231
53301022020120023
6122332105545221
710646102140000
oct1464424400355
9345235844034
10110131020013
11427850a9413
12194167a5211
13a5016b1a41
14548a76b537
152ce887850d
hex19a45200ed

110131020013 has 10 divisors (see below), whose sum is σ = 128478548014. Its totient is φ = 94398015096.

The previous prime is 110131020001. The next prime is 110131020029. The reversal of 110131020013 is 310020131011.

It can be written as a sum of positive squares in only one way, i.e., 85344611044 + 24786408969 = 292138^2 + 157437^2 .

It is not a de Polignac number, because 110131020013 - 225 = 110097465581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110131019975 and 110131020002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110131020073) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 22932006 + ... + 22936807.

Almost surely, 2110131020013 is an apocalyptic number.

It is an amenable number.

110131020013 is a deficient number, since it is larger than the sum of its proper divisors (18347528001).

110131020013 is an frugal number, since it uses more digits than its factorization.

110131020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45868841 (or 45868820 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 110131020013 its reverse (310020131011), we get a palindrome (420151151024).

The spelling of 110131020013 in words is "one hundred ten billion, one hundred thirty-one million, twenty thousand, thirteen".

Divisors: 1 7 49 343 2401 45868813 321081691 2247571837 15733002859 110131020013