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1231453015201 = 47103212538623
BaseRepresentation
bin10001111010111000010…
…100011100110010100001
311100201121002002211111101
4101322320110130302201
5130134003432441301
62341415515514401
7154653360630553
oct21727024346241
94321532084441
101231453015201
11435290139a32
1217a7b7158a01
138c182a011c6
14438619254d3
152207617c701
hex11eb851cca1

1231453015201 has 8 divisors (see below), whose sum is σ = 1257776492544. Its totient is φ = 1205134635840.

The previous prime is 1231453015187. The next prime is 1231453015207. The reversal of 1231453015201 is 1025103541321.

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 1231453015201 - 29 = 1231453014689 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 1231453015201.

It is not an unprimeable number, because it can be changed into a prime (1231453015207) 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 7 ways as a sum of consecutive naturals, for example, 784225 + ... + 1754398.

It is an arithmetic number, because the mean of its divisors is an integer number (157222061568).

Almost surely, 21231453015201 is an apocalyptic number.

It is an amenable number.

1231453015201 is a deficient number, since it is larger than the sum of its proper divisors (26323477343).

1231453015201 is a wasteful number, since it uses less digits than its factorization.

1231453015201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548991.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 1231453015201 its reverse (1025103541321), we get a palindrome (2256556556522).

The spelling of 1231453015201 in words is "one trillion, two hundred thirty-one billion, four hundred fifty-three million, fifteen thousand, two hundred one".

Divisors: 1 47 10321 485087 2538623 119315281 26201127983 1231453015201