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11021422031 = 171409460127
BaseRepresentation
bin10100100001110110…
…11000110111001111
31001110002202020201222
422100323120313033
5140032441001111
65021351153555
7540056353514
oct122073306717
931402666658
1011021422031
11474633a554
1221770758bb
1310684b80c9
14767a8930b
154478c17db
hex290ed8dcf

11021422031 has 8 divisors (see below), whose sum is σ = 11678048640. Its totient is φ = 10365718528.

The previous prime is 11021422021. The next prime is 11021422039. The reversal of 11021422031 is 13022412011.

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

It is a cyclic number.

It is not a de Polignac number, because 11021422031 - 230 = 9947680207 is a prime.

It is a super-2 number, since 2×110214220312 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021422039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206111 + ... + 254016.

It is an arithmetic number, because the mean of its divisors is an integer number (1459756080).

Almost surely, 211021422031 is an apocalyptic number.

11021422031 is a deficient number, since it is larger than the sum of its proper divisors (656626609).

11021422031 is a wasteful number, since it uses less digits than its factorization.

11021422031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461553.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11021422031 its reverse (13022412011), we get a palindrome (24043834042).

The spelling of 11021422031 in words is "eleven billion, twenty-one million, four hundred twenty-two thousand, thirty-one".

Divisors: 1 17 1409 23953 460127 7822159 648318943 11021422031