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231022330001 = 1982411165361
BaseRepresentation
bin1101011100101000000…
…0010000000010010001
3211002022100021022222122
43113022000100002101
512241113204030001
6254044042144025
722455643255541
oct3271200200221
9732270238878
10231022330001
1189a8109a961
1238934ab2015
1318a2943c268
14b27820b321
156021be0b1b
hex35ca010091

231022330001 has 4 divisors (see below), whose sum is σ = 231023693604. Its totient is φ = 231020966400.

The previous prime is 231022329997. The next prime is 231022330003. The reversal of 231022330001 is 100033220132.

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 59145753601 + 171876576400 = 243199^2 + 414580^2 .

It is a cyclic number.

It is not a de Polignac number, because 231022330001 - 22 = 231022329997 is a prime.

It is a super-3 number, since 3×2310223300013 (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231022330003) 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, 384440 + ... + 780921.

It is an arithmetic number, because the mean of its divisors is an integer number (57755923401).

Almost surely, 2231022330001 is an apocalyptic number.

It is an amenable number.

231022330001 is a deficient number, since it is larger than the sum of its proper divisors (1363603).

231022330001 is a wasteful number, since it uses less digits than its factorization.

231022330001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363602.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 231022330001 its reverse (100033220132), we get a palindrome (331055550133).

The spelling of 231022330001 in words is "two hundred thirty-one billion, twenty-two million, three hundred thirty thousand, one".

Divisors: 1 198241 1165361 231022330001