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20112022031 = 371015381863
BaseRepresentation
bin10010101110110001…
…010001101000001111
31220220122022120120212
4102232301101220033
5312142134201111
613123410233035
71311252236513
oct225661215017
956818276525
1020112022031
118590791912
123a9358577b
131b8696a46a
14d8b126143
157ca9e798b
hex4aec51a0f

20112022031 has 8 divisors (see below), whose sum is σ = 20860104864. Its totient is φ = 19374703200.

The previous prime is 20112022013. The next prime is 20112022037. The reversal of 20112022031 is 13022021102.

It is a happy number.

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 20112022031 - 218 = 20111759887 is a prime.

It is a super-2 number, since 2×201120220312 (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 = 20112021997 and 20112022015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112022037) 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 7 ways as a sum of consecutive naturals, for example, 2687195 + ... + 2694668.

It is an arithmetic number, because the mean of its divisors is an integer number (2607513108).

Almost surely, 220112022031 is an apocalyptic number.

20112022031 is a deficient number, since it is larger than the sum of its proper divisors (748082833).

20112022031 is a wasteful number, since it uses less digits than its factorization.

20112022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5382001.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20112022031 its reverse (13022021102), we get a palindrome (33134043133).

The spelling of 20112022031 in words is "twenty billion, one hundred twelve million, twenty-two thousand, thirty-one".

Divisors: 1 37 101 3737 5381863 199128931 543568163 20112022031