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31341412111 = 101310311011
BaseRepresentation
bin11101001100000101…
…111111111100001111
32222220020101200212011
4131030011333330033
51003141400141421
622221551122051
72156445415222
oct351405777417
988806350764
1031341412111
1112323456889
1260a8213327
132c5626c589
1417346695b9
15c367994e1
hex74c17ff0f

31341412111 has 4 divisors (see below), whose sum is σ = 31651723224. Its totient is φ = 31031101000.

The previous prime is 31341412099. The next prime is 31341412129. The reversal of 31341412111 is 11121414313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11121414313 = 101110113013.

It is a cyclic number.

It is not a de Polignac number, because 31341412111 - 25 = 31341412079 is a prime.

It is a super-2 number, since 2×313414121112 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31341415111) 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, 155155405 + ... + 155155606.

It is an arithmetic number, because the mean of its divisors is an integer number (7912930806).

Almost surely, 231341412111 is an apocalyptic number.

31341412111 is a deficient number, since it is larger than the sum of its proper divisors (310311113).

31341412111 is a wasteful number, since it uses less digits than its factorization.

31341412111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310311112.

The product of its digits is 288, while the sum is 22.

Adding to 31341412111 its reverse (11121414313), we get a palindrome (42462826424).

The spelling of 31341412111 in words is "thirty-one billion, three hundred forty-one million, four hundred twelve thousand, one hundred eleven".

Divisors: 1 101 310311011 31341412111