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23103001331 = 39075913233
BaseRepresentation
bin10101100001000010…
…111101001011110011
32012122002101001211222
4111201002331023303
5334303332020311
614340253255255
71445341162004
oct254102751363
965562331758
1023103001331
119886050933
12458919452b
132242513ab7
1411924611ab
159033a8adb
hex5610bd2f3

23103001331 has 4 divisors (see below), whose sum is σ = 23108918472. Its totient is φ = 23097084192.

The previous prime is 23103001321. The next prime is 23103001357. The reversal of 23103001331 is 13310030132.

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

It is a cyclic number.

It is not a de Polignac number, because 23103001331 - 222 = 23098807027 is a prime.

It is a super-2 number, since 2×231030013312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23103001321) 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, 2952710 + ... + 2960523.

It is an arithmetic number, because the mean of its divisors is an integer number (5777229618).

Almost surely, 223103001331 is an apocalyptic number.

23103001331 is a deficient number, since it is larger than the sum of its proper divisors (5917141).

23103001331 is an equidigital number, since it uses as much as digits as its factorization.

23103001331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5917140.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 23103001331 its reverse (13310030132), we get a palindrome (36413031463).

The spelling of 23103001331 in words is "twenty-three billion, one hundred three million, one thousand, three hundred thirty-one".

Divisors: 1 3907 5913233 23103001331