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130303212231 = 343434404077
BaseRepresentation
bin111100101011010101…
…1010011101011000111
3110110100001111000121110
41321112223103223013
54113330110242411
6135505510020103
712262015013013
oct1712653235307
9413301430543
10130303212231
1150296847a55
1221306347633
13c39795875a
146441877543
1535c97a92a6
hex1e56ad3ac7

130303212231 has 4 divisors (see below), whose sum is σ = 173737616312. Its totient is φ = 86868808152.

The previous prime is 130303212217. The next prime is 130303212233. The reversal of 130303212231 is 132212303031.

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

It is not a de Polignac number, because 130303212231 - 25 = 130303212199 is a prime.

It is a super-2 number, since 2×1303032122312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130303212198 and 130303212207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130303212233) 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, 21717202036 + ... + 21717202041.

It is an arithmetic number, because the mean of its divisors is an integer number (43434404078).

Almost surely, 2130303212231 is an apocalyptic number.

130303212231 is a deficient number, since it is larger than the sum of its proper divisors (43434404081).

130303212231 is an equidigital number, since it uses as much as digits as its factorization.

130303212231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43434404080.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 130303212231 its reverse (132212303031), we get a palindrome (262515515262).

The spelling of 130303212231 in words is "one hundred thirty billion, three hundred three million, two hundred twelve thousand, two hundred thirty-one".

Divisors: 1 3 43434404077 130303212231