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23431103121 = 375110399957
BaseRepresentation
bin10101110100100110…
…100100001010010001
32020110221202100220010
4111310212210022101
5340441330244441
614433013505133
71456434042666
oct256446441221
966427670803
1023431103121
119a34279638
12465b0421a9
1322954a087a
1411c3c6ba6d
159220b9116
hex5749a4291

23431103121 has 8 divisors (see below), whose sum is σ = 31283073664. Its totient is φ = 15599934000.

The previous prime is 23431103081. The next prime is 23431103153. The reversal of 23431103121 is 12130113432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23431103121 - 211 = 23431101073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23431103921) 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, 5197726 + ... + 5202231.

It is an arithmetic number, because the mean of its divisors is an integer number (3910384208).

Almost surely, 223431103121 is an apocalyptic number.

It is an amenable number.

23431103121 is a deficient number, since it is larger than the sum of its proper divisors (7851970543).

23431103121 is a wasteful number, since it uses less digits than its factorization.

23431103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10400711.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 23431103121 its reverse (12130113432), we get a palindrome (35561216553).

The spelling of 23431103121 in words is "twenty-three billion, four hundred thirty-one million, one hundred three thousand, one hundred twenty-one".

Divisors: 1 3 751 2253 10399957 31199871 7810367707 23431103121