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431321101442123 = 1999122907276087
BaseRepresentation
bin110001000010010001100010…
…1000010010001110001001011
32002120011220011011101122122112
41202010203011002101301023
5423013231103432121443
64125202102323012535
7156564630660320534
oct14204430502216113
92076156134348575
10431321101442123
11115483285278702
1240460b0420a14b
13156895366c6259
1478720a485b68b
1534ce9b9616b18
hex18848c5091c4b

431321101442123 has 8 divisors (see below), whose sum is σ = 454480357585920. Its totient is φ = 408207659852520.

The previous prime is 431321101442089. The next prime is 431321101442207. The reversal of 431321101442123 is 321244101123134.

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 431321101442123 - 212 = 431321101438027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431321101442123.

It is not an unprimeable number, because it can be changed into a prime (431321101442323) 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, 11453619215 + ... + 11453656872.

It is an arithmetic number, because the mean of its divisors is an integer number (56810044698240).

Almost surely, 2431321101442123 is an apocalyptic number.

431321101442123 is a deficient number, since it is larger than the sum of its proper divisors (23159256143797).

431321101442123 is a wasteful number, since it uses less digits than its factorization.

431321101442123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22907277097.

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 431321101442123 its reverse (321244101123134), we get a palindrome (752565202565257).

The spelling of 431321101442123 in words is "four hundred thirty-one trillion, three hundred twenty-one billion, one hundred one million, four hundred forty-two thousand, one hundred twenty-three".

Divisors: 1 19 991 18829 22907276087 435238245653 22701110602217 431321101442123