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231123022301201 = 1035722315634093
BaseRepresentation
bin110100100011010010000101…
…101001001100100000010001
31010022100010220210220122212112
4310203102011221030200101
5220243204422202114301
62135320241202035105
766453041644043162
oct6443220551144021
91108303823818775
10231123022301201
11677087a57a6aa8
1221b09234648a95
139bc6a66073214
1441105b1ccd769
151bac090a819bb
hexd23485a4c811

231123022301201 has 4 divisors (see below), whose sum is σ = 231145337945652. Its totient is φ = 231100706656752.

The previous prime is 231123022301131. The next prime is 231123022301203. The reversal of 231123022301201 is 102103220321132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66295811666176 + 164827210635025 = 8142224^2 + 12838505^2 .

It is a cyclic number.

It is not a de Polignac number, because 231123022301201 - 230 = 231121948559377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231123022301203) 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, 11157806690 + ... + 11157827403.

It is an arithmetic number, because the mean of its divisors is an integer number (57786334486413).

Almost surely, 2231123022301201 is an apocalyptic number.

It is an amenable number.

231123022301201 is a deficient number, since it is larger than the sum of its proper divisors (22315644451).

231123022301201 is a wasteful number, since it uses less digits than its factorization.

231123022301201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22315644450.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 231123022301201 its reverse (102103220321132), we get a palindrome (333226242622333).

The spelling of 231123022301201 in words is "two hundred thirty-one trillion, one hundred twenty-three billion, twenty-two million, three hundred one thousand, two hundred one".

Divisors: 1 10357 22315634093 231123022301201