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11122230031 = 111738836619
BaseRepresentation
bin10100101101110111…
…11100001100001111
31001201010102211022121
422112323330030033
5140234242330111
65035351553411
7542422252423
oct122673741417
931633384277
1011122230031
114798233050
1221a498b867
131083352603
1477720ab83
15451685871
hex296efc30f

11122230031 has 16 divisors (see below), whose sum is σ = 12219143040. Its totient is φ = 10039770720.

The previous prime is 11122229981. The next prime is 11122230043. The reversal of 11122230031 is 13003222111.

It is a cyclic number.

It is not a de Polignac number, because 11122230031 - 211 = 11122227983 is a prime.

It is a super-2 number, since 2×111222300312 (a number of 21 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 = 11122229987 and 11122230014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122237031) 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, 1677040 + ... + 1683658.

It is an arithmetic number, because the mean of its divisors is an integer number (763696440).

Almost surely, 211122230031 is an apocalyptic number.

11122230031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11122230031 is a deficient number, since it is larger than the sum of its proper divisors (1096913009).

11122230031 is a wasteful number, since it uses less digits than its factorization.

11122230031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7686.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11122230031 its reverse (13003222111), we get a palindrome (24125452142).

The spelling of 11122230031 in words is "eleven billion, one hundred twenty-two million, two hundred thirty thousand, thirty-one".

Divisors: 1 11 173 883 1903 6619 9713 72809 152759 1145087 1680349 5844577 12595957 64290347 1011111821 11122230031