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123121424431001 = 257487387982939
BaseRepresentation
bin11011111111101001110000…
…110001000111011110011001
3121010221021220202112111212202
4123333221300301013132121
5112114210134123243001
61113505111311215545
734635141450111563
oct3377516061073631
9533837822474782
10123121424431001
1136259559360107
121198590bb175b5
1353913ba2978c9
142259174540333
15e37a0de1d96b
hex6ffa70c47799

123121424431001 has 8 divisors (see below), whose sum is σ = 123600875465760. Its totient is φ = 122641976337408.

The previous prime is 123121424430929. The next prime is 123121424431037. The reversal of 123121424431001 is 100134424121321.

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

It is a cyclic number.

It is not a de Polignac number, because 123121424431001 - 226 = 123121357322137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123121424431091) 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, 124766990 + ... + 125749928.

It is an arithmetic number, because the mean of its divisors is an integer number (15450109433220).

Almost surely, 2123121424431001 is an apocalyptic number.

It is an amenable number.

123121424431001 is a deficient number, since it is larger than the sum of its proper divisors (479451034759).

123121424431001 is an equidigital number, since it uses as much as digits as its factorization.

123121424431001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470583.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 123121424431001 its reverse (100134424121321), we get a palindrome (223255848552322).

The spelling of 123121424431001 in words is "one hundred twenty-three trillion, one hundred twenty-one billion, four hundred twenty-four million, four hundred thirty-one thousand, one".

Divisors: 1 257 487387 982939 125258459 252615323 479071690393 123121424431001