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110310031213 = 172357640009
BaseRepresentation
bin110011010111011111…
…1010111111101101101
3101112201200210012020121
41212232333113331231
53301403331444323
6122401542444541
710653404536354
oct1465677277555
9345650705217
10110310031213
1142867156158
1219466733751
13a52c7ca825
1454a644899b
152d09438a5d
hex19aefd7f6d

110310031213 has 4 divisors (see below), whose sum is σ = 110310843580. Its totient is φ = 110309218848.

The previous prime is 110310031189. The next prime is 110310031253. The reversal of 110310031213 is 312130013011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 312130013011 = 2231399686157.

It can be written as a sum of positive squares in 2 ways, for example, as 109631845449 + 678185764 = 331107^2 + 26042^2 .

It is a cyclic number.

It is not a de Polignac number, because 110310031213 - 225 = 110276476781 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 (110310031253) 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, 147648 + ... + 492361.

It is an arithmetic number, because the mean of its divisors is an integer number (27577710895).

Almost surely, 2110310031213 is an apocalyptic number.

It is an amenable number.

110310031213 is a deficient number, since it is larger than the sum of its proper divisors (812367).

110310031213 is an equidigital number, since it uses as much as digits as its factorization.

110310031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812366.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 110310031213 its reverse (312130013011), we get a palindrome (422440044224).

The spelling of 110310031213 in words is "one hundred ten billion, three hundred ten million, thirty-one thousand, two hundred thirteen".

Divisors: 1 172357 640009 110310031213