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112121202331 = 17163233917299
BaseRepresentation
bin110100001101011110…
…0011100011010011011
3101201101220211012221101
41220122330130122123
53314111011433311
6123301402252231
711046316331545
oct1503274343233
9351356735841
10112121202331
114360654a896
12198911b7077
13a75aacc508
1455d8bcc695
152db344bec1
hex1a1af1c69b

112121202331 has 16 divisors (see below), whose sum is σ = 119502864000. Its totient is φ = 104827540608.

The previous prime is 112121202329. The next prime is 112121202343. The reversal of 112121202331 is 133202121211.

It is a cyclic number.

It is not a de Polignac number, because 112121202331 - 21 = 112121202329 is a prime.

It is a super-2 number, since 2×1121212023312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112121202299 and 112121202308.

It is not an unprimeable number, because it can be changed into a prime (112121202031) 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, 6472720 + ... + 6490018.

It is an arithmetic number, because the mean of its divisors is an integer number (7468929000).

Almost surely, 2112121202331 is an apocalyptic number.

112121202331 is a deficient number, since it is larger than the sum of its proper divisors (7381661669).

112121202331 is a wasteful number, since it uses less digits than its factorization.

112121202331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19818.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 112121202331 its reverse (133202121211), we get a palindrome (245323323542).

The spelling of 112121202331 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred two thousand, three hundred thirty-one".

Divisors: 1 17 163 2339 2771 17299 39763 294083 381257 2819737 6481369 40462361 47935529 687860137 6595364843 112121202331