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112210031021 = 1110200911911
BaseRepresentation
bin110100010000000111…
…1010011000110101101
3101201122002222011222212
41220200033103012231
53314301231443041
6123314254220205
711051445345404
oct1504017230655
9351562864885
10112210031021
1143651701130
12198b6ab4665
13a77333127a
14560691263b
152dbb1468eb
hex1a203d31ad

112210031021 has 4 divisors (see below), whose sum is σ = 122410942944. Its totient is φ = 102009119100.

The previous prime is 112210030939. The next prime is 112210031029. The reversal of 112210031021 is 120130012211.

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 a de Polignac number, because none of the positive numbers 2k-112210031021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112210030987 and 112210031005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112210031029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5100455945 + ... + 5100455966.

It is an arithmetic number, because the mean of its divisors is an integer number (30602735736).

Almost surely, 2112210031021 is an apocalyptic number.

112210031021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112210031021 is a deficient number, since it is larger than the sum of its proper divisors (10200911923).

112210031021 is a wasteful number, since it uses less digits than its factorization.

112210031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10200911922.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 112210031021 its reverse (120130012211), we get a palindrome (232340043232).

The spelling of 112210031021 in words is "one hundred twelve billion, two hundred ten million, thirty-one thousand, twenty-one".

Divisors: 1 11 10200911911 112210031021