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112112311031 = 719842949707
BaseRepresentation
bin110100001101001101…
…0100001101011110111
3101201101022002111100222
41220122122201223313
53314101222423111
6123300443524555
711046150630440
oct1503232415367
9351338074328
10112112311031
1143601527706
121988a22975b
13a7590084a6
1455d79562c7
152db27927db
hex1a1a6a1af7

112112311031 has 8 divisors (see below), whose sum is σ = 134871953280. Its totient is φ = 91038568248.

The previous prime is 112112311027. The next prime is 112112311043. The reversal of 112112311031 is 130113211211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112112311031 - 22 = 112112311027 is a prime.

It is a super-2 number, since 2×1121123110312 (a number of 23 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 (112112319031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421474721 + ... + 421474986.

It is an arithmetic number, because the mean of its divisors is an integer number (16858994160).

Almost surely, 2112112311031 is an apocalyptic number.

112112311031 is a deficient number, since it is larger than the sum of its proper divisors (22759642249).

112112311031 is an equidigital number, since it uses as much as digits as its factorization.

112112311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842949733.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 112112311031 its reverse (130113211211), we get a palindrome (242225522242).

The spelling of 112112311031 in words is "one hundred twelve billion, one hundred twelve million, three hundred eleven thousand, thirty-one".

Divisors: 1 7 19 133 842949707 5900647949 16016044433 112112311031