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23311032001 = 87412666861
BaseRepresentation
bin10101101101011100…
…100001111011000001
32020011120211010021121
4111231130201323001
5340220111011001
614413044152241
71453445334265
oct255534417301
966146733247
1023311032001
119982519404
124626998681
13227665047a
1411b1d340a5
1591679c6a1
hex56d721ec1

23311032001 has 4 divisors (see below), whose sum is σ = 23313707604. Its totient is φ = 23308356400.

The previous prime is 23311031917. The next prime is 23311032071. The reversal of 23311032001 is 10023011332.

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 11702046976 + 11608985025 = 108176^2 + 107745^2 .

It is a cyclic number.

It is not a de Polignac number, because 23311032001 - 211 = 23311029953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23311032071) 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, 1324690 + ... + 1342171.

It is an arithmetic number, because the mean of its divisors is an integer number (5828426901).

Almost surely, 223311032001 is an apocalyptic number.

It is an amenable number.

23311032001 is a deficient number, since it is larger than the sum of its proper divisors (2675603).

23311032001 is an equidigital number, since it uses as much as digits as its factorization.

23311032001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675602.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23311032001 its reverse (10023011332), we get a palindrome (33334043333).

The spelling of 23311032001 in words is "twenty-three billion, three hundred eleven million, thirty-two thousand, one".

Divisors: 1 8741 2666861 23311032001