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20112020223031 = 1115289119586989
BaseRepresentation
bin1001001001010101100011…
…10100100011010000110111
32122012200122021021110001001
410210222301310203100313
510114003404134114111
6110435200132144131
74144021416142252
oct444526164432067
978180567243031
1020112020223031
116454507107660
122309a16a68047
13b2b72b1b8a89
144d75d9882099
1524d25e4d81c1
hex124ab1d23437

20112020223031 has 8 divisors (see below), whose sum is σ = 21941820925200. Its totient is φ = 18282458725440.

The previous prime is 20112020223007. The next prime is 20112020223101. The reversal of 20112020223031 is 13032202021102.

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 20112020223031 - 229 = 20111483352119 is a prime.

It is a super-2 number, since 2×201120202230312 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112020223131) 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, 59625316 + ... + 59961673.

It is an arithmetic number, because the mean of its divisors is an integer number (2742727615650).

Almost surely, 220112020223031 is an apocalyptic number.

20112020223031 is a deficient number, since it is larger than the sum of its proper divisors (1829800702169).

20112020223031 is a wasteful number, since it uses less digits than its factorization.

20112020223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119602289.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20112020223031 its reverse (13032202021102), we get a palindrome (33144222244133).

The spelling of 20112020223031 in words is "twenty trillion, one hundred twelve billion, twenty million, two hundred twenty-three thousand, thirty-one".

Divisors: 1 11 15289 168179 119586989 1315456879 1828365474821 20112020223031