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1230020113020 = 223520500335217
BaseRepresentation
bin10001111001100010111…
…010010111001001111100
311100120220012211212020020
4101321202322113021330
5130123040122104040
62341021411452140
7154603021311306
oct21714272271174
94316805755206
101230020113020
11434715318356
1217a4772b7050
138bcb4ba27aa
14437674ca976
1521ee0488cd0
hex11e62e9727c

1230020113020 has 24 divisors (see below), whose sum is σ = 3444056316624. Its totient is φ = 328005363456.

The previous prime is 1230020112989. The next prime is 1230020113031. The reversal of 1230020113020 is 203110200321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 10250167549 + ... + 10250167668.

It is an arithmetic number, because the mean of its divisors is an integer number (143502346526).

Almost surely, 21230020113020 is an apocalyptic number.

1230020113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230020113020 is an abundant number, since it is smaller than the sum of its proper divisors (2214036203604).

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

1230020113020 is a wasteful number, since it uses less digits than its factorization.

1230020113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20500335229 (or 20500335227 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1230020113020 its reverse (203110200321), we get a palindrome (1433130313341).

The spelling of 1230020113020 in words is "one trillion, two hundred thirty billion, twenty million, one hundred thirteen thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 20500335217 41000670434 61501005651 82001340868 102501676085 123002011302 205003352170 246004022604 307505028255 410006704340 615010056510 1230020113020