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1213430015001 = 3404476671667
BaseRepresentation
bin10001101010000110000…
…100001010010000011001
311022000002000122120010110
4101222012010022100121
5124340101040440001
62325235252234533
7153444632642511
oct21520604122031
94260060576113
101213430015001
11428681678146
1217720730ba49
138a56caa9a49
1442a3202c841
152186dc7e3d6
hex11a8610a419

1213430015001 has 4 divisors (see below), whose sum is σ = 1617906686672. Its totient is φ = 808953343332.

The previous prime is 1213430014999. The next prime is 1213430015011. The reversal of 1213430015001 is 1005100343121.

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 not a de Polignac number, because 1213430015001 - 21 = 1213430014999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213430015011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202238335831 + ... + 202238335836.

It is an arithmetic number, because the mean of its divisors is an integer number (404476671668).

Almost surely, 21213430015001 is an apocalyptic number.

It is an amenable number.

1213430015001 is a deficient number, since it is larger than the sum of its proper divisors (404476671671).

1213430015001 is an equidigital number, since it uses as much as digits as its factorization.

1213430015001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404476671670.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 1213430015001 its reverse (1005100343121), we get a palindrome (2218530358122).

The spelling of 1213430015001 in words is "one trillion, two hundred thirteen billion, four hundred thirty million, fifteen thousand, one".

Divisors: 1 3 404476671667 1213430015001