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1231452500041 = 9191339991839
BaseRepresentation
bin10001111010111000010…
…010011111000001001001
311100201121001010122211101
4101322320102133001021
5130134003320000131
62341415500501401
7154653353353621
oct21727022370111
94321531118741
101231452500041
1143528a917985
1217a7b6b4a861
138c18288088a
144386182d881
15220760c9c61
hex11eb849f049

1231452500041 has 4 divisors (see below), whose sum is σ = 1232792492800. Its totient is φ = 1230112507284.

The previous prime is 1231452500027. The next prime is 1231452500053. The reversal of 1231452500041 is 1400052541321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1231452500041 - 229 = 1230915629129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231452499982 and 1231452500009.

It is not an unprimeable number, because it can be changed into a prime (1231452500011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669995001 + ... + 669996838.

It is an arithmetic number, because the mean of its divisors is an integer number (308198123200).

Almost surely, 21231452500041 is an apocalyptic number.

It is an amenable number.

1231452500041 is a deficient number, since it is larger than the sum of its proper divisors (1339992759).

1231452500041 is an equidigital number, since it uses as much as digits as its factorization.

1231452500041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339992758.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 1231452500041 in words is "one trillion, two hundred thirty-one billion, four hundred fifty-two million, five hundred thousand, forty-one".

Divisors: 1 919 1339991839 1231452500041