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130232021223 = 343410673741
BaseRepresentation
bin111100101001001101…
…1101111000011100111
3110110011002112010220110
41321102123233003213
54113203344134343
6135454444104103
712260161626033
oct1712233570347
9413132463813
10130232021223
115025a643107
12212a6535033
13c385c90ab5
1464362251c3
1535c33e5833
hex1e526ef0e7

130232021223 has 4 divisors (see below), whose sum is σ = 173642694968. Its totient is φ = 86821347480.

The previous prime is 130232021203. The next prime is 130232021263. The reversal of 130232021223 is 322120232031.

It is a happy number.

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

It is not a de Polignac number, because 130232021223 - 225 = 130198466791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130232021223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130232021203) 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, 21705336868 + ... + 21705336873.

It is an arithmetic number, because the mean of its divisors is an integer number (43410673742).

Almost surely, 2130232021223 is an apocalyptic number.

130232021223 is a deficient number, since it is larger than the sum of its proper divisors (43410673745).

130232021223 is an equidigital number, since it uses as much as digits as its factorization.

130232021223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43410673744.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 130232021223 its reverse (322120232031), we get a palindrome (452352253254).

The spelling of 130232021223 in words is "one hundred thirty billion, two hundred thirty-two million, twenty-one thousand, two hundred twenty-three".

Divisors: 1 3 43410673741 130232021223