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112031001121 = 138617769317
BaseRepresentation
bin110100001010110010…
…0010110101000100001
3101201011122002112010211
41220111210112220201
53313414414013441
6123244421054121
711044142540344
oct1502544265041
9351148075124
10112031001121
114356a641336
1219866b57341
13a745209b10
1455cac2c45b
152daa580a81
hex1a15916a21

112031001121 has 4 divisors (see below), whose sum is σ = 120648770452. Its totient is φ = 103413231792.

The previous prime is 112031001107. The next prime is 112031001127. The reversal of 112031001121 is 121100130211.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9768554896 + 102262446225 = 98836^2 + 319785^2 .

It is not a de Polignac number, because 112031001121 - 225 = 111997446689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 8617769317 = 112031001121 / (1 + 1 + 2 + 0 + 3 + 1 + 0 + 0 + 1 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112031001127) 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, 4308884646 + ... + 4308884671.

It is an arithmetic number, because the mean of its divisors is an integer number (30162192613).

Almost surely, 2112031001121 is an apocalyptic number.

It is an amenable number.

112031001121 is a deficient number, since it is larger than the sum of its proper divisors (8617769331).

112031001121 is an equidigital number, since it uses as much as digits as its factorization.

112031001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8617769330.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 112031001121 its reverse (121100130211), we get a palindrome (233131131332).

The spelling of 112031001121 in words is "one hundred twelve billion, thirty-one million, one thousand, one hundred twenty-one".

Divisors: 1 13 8617769317 112031001121