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230120111232 = 27321132095659
BaseRepresentation
bin1101011001010000111…
…0100011110010000000
3210222222110120212111200
43112110032203302000
512232241222024412
6253414332341200
722424406446244
oct3262416436200
9728873525450
10230120111232
1189658892610
1238722914800
13189145499bb
14b1d0474424
155ebc8c69dc
hex35943a3c80

230120111232 has 192 divisors, whose sum is σ = 722746908000. Its totient is φ = 69699317760.

The previous prime is 230120111231. The next prime is 230120111237. The reversal of 230120111232 is 232111021032.

230120111232 is a `hidden beast` number, since 2 + 301 + 20 + 111 + 232 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is not an unprimeable number, because it can be changed into a prime (230120111231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40661619 + ... + 40667277.

Almost surely, 2230120111232 is an apocalyptic number.

230120111232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230120111232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361373454000).

230120111232 is an abundant number, since it is smaller than the sum of its proper divisors (492626796768).

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

230120111232 is a wasteful number, since it uses less digits than its factorization.

230120111232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8899 (or 8884 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 230120111232 its reverse (232111021032), we get a palindrome (462231132264).

The spelling of 230120111232 in words is "two hundred thirty billion, one hundred twenty million, one hundred eleven thousand, two hundred thirty-two".