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1112121110101 = 2152351671287
BaseRepresentation
bin10000001011101111100…
…101010110111001010101
310221022120122001221220111
4100023233211112321111
5121210111001010401
62210522411003021
7143230253314651
oct20135745267125
93838518057814
101112121110101
11399714412461
1215b653139471
1380b46065081
143bb8120da61
151dddeb95e51
hex102ef956e55

1112121110101 has 4 divisors (see below), whose sum is σ = 1112172802912. Its totient is φ = 1112069417292.

The previous prime is 1112121110099. The next prime is 1112121110117. The reversal of 1112121110101 is 1010111212111.

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 1112121110101 - 21 = 1112121110099 is a prime.

It is a super-3 number, since 3×11121211101013 (a number of 37 digits) contains 333 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 (1112121117101) 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, 25814121 + ... + 25857166.

It is an arithmetic number, because the mean of its divisors is an integer number (278043200728).

Almost surely, 21112121110101 is an apocalyptic number.

It is an amenable number.

1112121110101 is a deficient number, since it is larger than the sum of its proper divisors (51692811).

1112121110101 is an equidigital number, since it uses as much as digits as its factorization.

1112121110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51692810.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1112121110101 its reverse (1010111212111), we get a palindrome (2122232322212).

The spelling of 1112121110101 in words is "one trillion, one hundred twelve billion, one hundred twenty-one million, one hundred ten thousand, one hundred one".

Divisors: 1 21523 51671287 1112121110101