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213111303002431 = 1719659787315797
BaseRepresentation
bin110000011101001011010111…
…100000110101100100111111
31000221120020112010100221112021
4300131023113200311210333
5210413103422032034211
62033125551523421011
762613532520103451
oct6035132740654477
91027506463327467
10213111303002431
11619a3aa5821169
121ba9a494224767
1391bb404390942
143a8a8dbcd22d1
1519987a9e03771
hexc1d2d783593f

213111303002431 has 8 divisors (see below), whose sum is σ = 237523433687280. Its totient is φ = 190018746949248.

The previous prime is 213111303002371. The next prime is 213111303002441. The reversal of 213111303002431 is 134200303111312.

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 213111303002431 - 235 = 213076943264063 is a prime.

It is a super-2 number, since 2×2131113030024312 (a number of 29 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 = 213111303002396 and 213111303002405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213111303002441) 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, 329893657576 + ... + 329893658221.

It is an arithmetic number, because the mean of its divisors is an integer number (29690429210910).

Almost surely, 2213111303002431 is an apocalyptic number.

213111303002431 is a deficient number, since it is larger than the sum of its proper divisors (24412130684849).

213111303002431 is a wasteful number, since it uses less digits than its factorization.

213111303002431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659787315833.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 213111303002431 its reverse (134200303111312), we get a palindrome (347311606113743).

The spelling of 213111303002431 in words is "two hundred thirteen trillion, one hundred eleven billion, three hundred three million, two thousand, four hundred thirty-one".

Divisors: 1 17 19 323 659787315797 11216384368549 12535959000143 213111303002431