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12112031112001 = 177955716191451
BaseRepresentation
bin1011000001000000110101…
…0011111101101101000001
31120212220021021101021000221
42300100031103331231001
53041420414431041001
641432105033343041
72360031264524212
oct260201523755501
946786237337027
1012112031112001
11394a757891477
121437486867a81
1369b20c937cc2
142dc322839409
151600dd4c41a1
hexb040d4fdb41

12112031112001 has 16 divisors (see below), whose sum is σ = 13010155511040. Its totient is φ = 11235052857600.

The previous prime is 12112031111963. The next prime is 12112031112011. The reversal of 12112031112001 is 10021113021121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12112031112001 - 211 = 12112031109953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112031112011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7347675 + ... + 8843776.

It is an arithmetic number, because the mean of its divisors is an integer number (813134719440).

Almost surely, 212112031112001 is an apocalyptic number.

It is an amenable number.

12112031112001 is a deficient number, since it is larger than the sum of its proper divisors (898124399039).

12112031112001 is a wasteful number, since it uses less digits than its factorization.

12112031112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16192104.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12112031112001 its reverse (10021113021121), we get a palindrome (22133144133122).

The spelling of 12112031112001 in words is "twelve trillion, one hundred twelve billion, thirty-one million, one hundred twelve thousand, one".

Divisors: 1 17 79 557 1343 9469 44003 748051 16191451 275254667 1279124629 9018638207 21745118693 153316849519 712472418353 12112031112001