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231031331230001 = 3835715311055437
BaseRepresentation
bin110100100001111100101100…
…011011100001000100110001
31010022000101020200222122011112
4310201330230123201010301
5220240204131243330001
62135210154532123105
766443314521562661
oct6441745433410461
91108011220878145
10231031331230001
1167682923561105
1221ab3505466495
139bbb212aac7c3
144109d945921a1
151ba99c6016cbb
hexd21f2c6e1131

231031331230001 has 8 divisors (see below), whose sum is σ = 231635170950144. Its totient is φ = 230427494764560.

The previous prime is 231031331229989. The next prime is 231031331230019. The reversal of 231031331230001 is 100032133130132.

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 231031331230001 - 210 = 231031331228977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231031331230501) 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, 218368655 + ... + 219424091.

It is an arithmetic number, because the mean of its divisors is an integer number (28954396368768).

Almost surely, 2231031331230001 is an apocalyptic number.

It is an amenable number.

231031331230001 is a deficient number, since it is larger than the sum of its proper divisors (603839720143).

231031331230001 is a wasteful number, since it uses less digits than its factorization.

231031331230001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627351.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 231031331230001 its reverse (100032133130132), we get a palindrome (331063464360133).

The spelling of 231031331230001 in words is "two hundred thirty-one trillion, thirty-one billion, three hundred thirty-one million, two hundred thirty thousand, one".

Divisors: 1 383 571531 1055437 218896373 404232371 603214964047 231031331230001