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121333032223 = 139333310171
BaseRepresentation
bin111000100000000000…
…0110010010100011111
3102121011220111122221021
41301000000302110133
53441442224012343
6131423431545011
711523513520504
oct1610000622437
9377156448837
10121333032223
1147503373a47
121b62222b167
13b598419530
145c303c54ab
15325201d0ed
hex1c4003251f

121333032223 has 4 divisors (see below), whose sum is σ = 130666342408. Its totient is φ = 111999722040.

The previous prime is 121333032203. The next prime is 121333032229. The reversal of 121333032223 is 322230333121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-121333032223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121333032229) 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, 4666655073 + ... + 4666655098.

It is an arithmetic number, because the mean of its divisors is an integer number (32666585602).

Almost surely, 2121333032223 is an apocalyptic number.

121333032223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121333032223 is a deficient number, since it is larger than the sum of its proper divisors (9333310185).

121333032223 is an equidigital number, since it uses as much as digits as its factorization.

121333032223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9333310184.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 121333032223 its reverse (322230333121), we get a palindrome (443563365344).

The spelling of 121333032223 in words is "one hundred twenty-one billion, three hundred thirty-three million, thirty-two thousand, two hundred twenty-three".

Divisors: 1 13 9333310171 121333032223