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320131130231 = 1129671980851
BaseRepresentation
bin1001010100010010100…
…11010110001101110111
31010121022111012101212002
410222021103112031313
520221112032131411
6403022145045515
732062101465203
oct4521123261567
91117274171762
10320131130231
1111384874a410
125206332689b
132425a7295a3
14116cc9ddb03
1584d9bcd33b
hex4a894d6377

320131130231 has 8 divisors (see below), whose sum is σ = 349246086528. Its totient is φ = 291018195000.

The previous prime is 320131130183. The next prime is 320131130279. The reversal of 320131130231 is 132031131023.

It is an interprime number because it is at equal distance from previous prime (320131130183) and next prime (320131130279).

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

It is a cyclic number.

It is not a de Polignac number, because 320131130231 - 210 = 320131129207 is a prime.

It is a super-2 number, since 2×3201311302312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320131130831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164045 + ... + 816806.

It is an arithmetic number, because the mean of its divisors is an integer number (43655760816).

Almost surely, 2320131130231 is an apocalyptic number.

320131130231 is a deficient number, since it is larger than the sum of its proper divisors (29114956297).

320131130231 is a wasteful number, since it uses less digits than its factorization.

320131130231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010533.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 320131130231 its reverse (132031131023), we get a palindrome (452162261254).

The spelling of 320131130231 in words is "three hundred twenty billion, one hundred thirty-one million, one hundred thirty thousand, two hundred thirty-one".

Divisors: 1 11 29671 326381 980851 10789361 29102830021 320131130231