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10213311111020 = 225510665555551
BaseRepresentation
bin1001010010011111100011…
…0001111101111101101100
31100011101100012201102212122
42110213320301331331230
52314313330121023040
633415532542252112
72102613241023203
oct224477061757554
940141305642778
1010213311111020
113288493952a16
12118b4a9287038
1359115a137644
1427448100223a
1512aa11cc01b5
hex949f8c7df6c

10213311111020 has 12 divisors (see below), whose sum is σ = 21447953333184. Its totient is φ = 4085324444400.

The previous prime is 10213311111019. The next prime is 10213311111037. The reversal of 10213311111020 is 2011111331201.

It is a self number, because there is not a number n which added to its sum of digits gives 10213311111020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255332777756 + ... + 255332777795.

It is an arithmetic number, because the mean of its divisors is an integer number (1787329444432).

Almost surely, 210213311111020 is an apocalyptic number.

10213311111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10213311111020 is an abundant number, since it is smaller than the sum of its proper divisors (11234642222164).

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

10213311111020 is a wasteful number, since it uses less digits than its factorization.

10213311111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510665555560 (or 510665555558 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 10213311111020 its reverse (2011111331201), we get a palindrome (12224422442221).

The spelling of 10213311111020 in words is "ten trillion, two hundred thirteen billion, three hundred eleven million, one hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 510665555551 1021331111102 2042662222204 2553327777755 5106655555510 10213311111020