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1212031200230 = 25121203120023
BaseRepresentation
bin10001101000110010101…
…100000110101111100110
311021212110112112101222222
4101220302230012233212
5124324214441401410
62324444402552342
7153365156134364
oct21506254065746
94255415471888
101212031200230
11428024018984
12176a969686b2
138a3a90548b6
144293c348634
15217db070955
hex11a32b06be6

1212031200230 has 8 divisors (see below), whose sum is σ = 2181656160432. Its totient is φ = 484812480088.

The previous prime is 1212031200217. The next prime is 1212031200239. The reversal of 1212031200230 is 320021302121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1212031200199 and 1212031200208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212031200239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60601560002 + ... + 60601560021.

It is an arithmetic number, because the mean of its divisors is an integer number (272707020054).

Almost surely, 21212031200230 is an apocalyptic number.

1212031200230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212031200230 is a deficient number, since it is larger than the sum of its proper divisors (969624960202).

1212031200230 is a wasteful number, since it uses less digits than its factorization.

1212031200230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121203120030.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1212031200230 its reverse (320021302121), we get a palindrome (1532052502351).

The spelling of 1212031200230 in words is "one trillion, two hundred twelve billion, thirty-one million, two hundred thousand, two hundred thirty".

Divisors: 1 2 5 10 121203120023 242406240046 606015600115 1212031200230