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1230203031330 = 235713798964091
BaseRepresentation
bin10001111001101101110…
…100001000111100100010
311100121100222001001222110
4101321231310020330202
5130123423434000310
62341051504220150
7154610402142660
oct21715564107442
94317328031873
101230203031330
114347a95a3609
1217a50860a656
138c013a58a90
1443783903c30
152200156bd20
hex11e6dd08f22

1230203031330 has 256 divisors, whose sum is σ = 3721232793600. Its totient is φ = 253390325760.

The previous prime is 1230203031289. The next prime is 1230203031341. The reversal of 1230203031330 is 331303020321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1230203031297 and 1230203031306.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19162585 + ... + 19226675.

It is an arithmetic number, because the mean of its divisors is an integer number (14536065600).

Almost surely, 21230203031330 is an apocalyptic number.

1230203031330 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 1230203031330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1860616396800).

1230203031330 is an abundant number, since it is smaller than the sum of its proper divisors (2491029762270).

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

1230203031330 is a wasteful number, since it uses less digits than its factorization.

1230203031330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64289.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 1230203031330 its reverse (331303020321), we get a palindrome (1561506051651).

The spelling of 1230203031330 in words is "one trillion, two hundred thirty billion, two hundred three million, thirty-one thousand, three hundred thirty".