102410013521 has 4 divisors (see below), whose sum is σ = 102684571572. Its totient is φ = 102135455472.

The previous prime is 102410013499. The next prime is 102410013553. The reversal of 102410013521 is 125310014201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39416543296 + 62993470225 = 198536^2 + 250985^2 .

It is a cyclic number.

It is not a de Polignac number, because 102410013521 - 2⁶ = 102410013457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102410013493 and 102410013502.

It is not an unprimeable number, because it can be changed into a prime (102410613521) 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, 137278466 + ... + 137279211.

It is an arithmetic number, because the mean of its divisors is an integer number (25671142893).

Almost surely, 2^102410013521 is an apocalyptic number.

It is an amenable number.

102410013521 is a deficient number, since it is larger than the sum of its proper divisors (274558051).

102410013521 is an equidigital number, since it uses as much as digits as its factorization.

102410013521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274558050.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 102410013521 its reverse (125310014201), we get a palindrome (227720027722).

The spelling of 102410013521 in words is "one hundred two billion, four hundred ten million, thirteen thousand, five hundred twenty-one".