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1112111010020 = 225195128501051
BaseRepresentation
bin10000001011101110111…
…110110101000011100100
310221022112221001211012102
4100023232332311003210
5121210100404310040
62210521410311232
7143230101420443
oct20135676650344
93838487054172
101112111010020
1139970974408a
1215b64b888518
1380b43c39aaa
143bb7db40d5a
151ddddd4d515
hex102eefb50e4

1112111010020 has 24 divisors (see below), whose sum is σ = 2336630247168. Its totient is φ = 444616380000.

The previous prime is 1112111010011. The next prime is 1112111010061. The reversal of 1112111010020 is 200101112111.

It is a junction number, because it is equal to n+sod(n) for n = 1112111009983 and 1112111010010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14211506 + ... + 14289545.

It is an arithmetic number, because the mean of its divisors is an integer number (97359593632).

Almost surely, 21112111010020 is an apocalyptic number.

1112111010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112111010020 is an abundant number, since it is smaller than the sum of its proper divisors (1224519237148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1112111010020 is a wasteful number, since it uses less digits than its factorization.

1112111010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28503011 (or 28503009 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1112111010020 its reverse (200101112111), we get a palindrome (1312212122131).

The spelling of 1112111010020 in words is "one trillion, one hundred twelve billion, one hundred eleven million, ten thousand, twenty".

Divisors: 1 2 4 5 10 20 1951 3902 7804 9755 19510 39020 28501051 57002102 114004204 142505255 285010510 570021020 55605550501 111211101002 222422202004 278027752505 556055505010 1112111010020