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112112112102031 = 781673143425847
BaseRepresentation
bin11001011111011100100010…
…100111011110101010001111
3112200221210221212002111202101
4121133130202213132222033
5104143321101144231111
61034235332052135531
732420555436255136
oct3137344247365217
9480853855074671
10112112112102031
11327a4530585658
12106a80b36075a7
134a73185799b32
141d983802d091d
15ce645ee40bc1
hex65f7229dea8f

112112112102031 has 4 divisors (see below), whose sum is σ = 112112256309552. Its totient is φ = 112111967894512.

The previous prime is 112112112102017. The next prime is 112112112102041. The reversal of 112112112102031 is 130201211211211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112112112102031 - 241 = 109913088846479 is a prime.

It is a super-2 number, since 2×1121121121020312 (a number of 29 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 (112112112102041) 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, 70931251 + ... + 72494596.

It is an arithmetic number, because the mean of its divisors is an integer number (28028064077388).

Almost surely, 2112112112102031 is an apocalyptic number.

112112112102031 is a deficient number, since it is larger than the sum of its proper divisors (144207521).

112112112102031 is an equidigital number, since it uses as much as digits as its factorization.

112112112102031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144207520.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 112112112102031 its reverse (130201211211211), we get a palindrome (242313323313242).

The spelling of 112112112102031 in words is "one hundred twelve trillion, one hundred twelve billion, one hundred twelve million, one hundred two thousand, thirty-one".

Divisors: 1 781673 143425847 112112112102031