1721010547113 has 32 divisors (see below), whose sum is σ = 2707419012480. Its totient is φ = 958670845440.

The previous prime is 1721010547111. The next prime is 1721010547133. The reversal of 1721010547113 is 3117450101271.

It is not a de Polignac number, because 1721010547113 - 2¹ = 1721010547111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1721010547111) 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 31 ways as a sum of consecutive naturals, for example, 8508798 + ... + 8708711.

It is an arithmetic number, because the mean of its divisors is an integer number (84606844140).

Almost surely, 2^{1721010547113} is an apocalyptic number.

1721010547113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1721010547113 is a deficient number, since it is larger than the sum of its proper divisors (986408465367).

1721010547113 is a wasteful number, since it uses less digits than its factorization.

1721010547113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17217769.

The product of its (nonzero) digits is 5880, while the sum is 33.

Adding to 1721010547113 its reverse (3117450101271), we get a palindrome (4838460648384).

The spelling of 1721010547113 in words is "one trillion, seven hundred twenty-one billion, ten million, five hundred forty-seven thousand, one hundred thirteen".