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1230202103130 = 23257211213374793
BaseRepresentation
bin10001111001101101110…
…000100110010101011010
311100121100220021220201200
4101321231300212111122
5130123423214300010
62341051432255030
7154610361225600
oct21715560462532
94317326256650
101230202103130
114347a901a200
1217a508241476
138c0137c2450
1443783741870
1522001436cc0
hex11e6dc2655a

1230202103130 has 864 divisors, whose sum is σ = 4524306473232. Its totient is φ = 229537566720.

The previous prime is 1230202103129. The next prime is 1230202103153. The reversal of 1230202103130 is 313012020321.

1230202103130 is a `hidden beast` number, since 1 + 230 + 202 + 103 + 130 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 814536935289 + 415665167841 = 902517^2 + 644721^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 256664014 + ... + 256668806.

Almost surely, 21230202103130 is an apocalyptic number.

1230202103130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230202103130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2262153236616).

1230202103130 is an abundant number, since it is smaller than the sum of its proper divisors (3294104370102).

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

1230202103130 is a wasteful number, since it uses less digits than its factorization.

1230202103130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4892 (or 4871 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1230202103130 its reverse (313012020321), we get a palindrome (1543214123451).

The spelling of 1230202103130 in words is "one trillion, two hundred thirty billion, two hundred two million, one hundred three thousand, one hundred thirty".