102041021544021 has 24 divisors (see below), whose sum is σ = 175853007651840. Its totient is φ = 58309155167256.

The previous prime is 102041021543987. The next prime is 102041021544023. The reversal of 102041021544021 is 120445120140201.

102041021544021 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 4 + 1 + 0 + 215 + 440 + 2 + 1 = 666.

It is not a de Polignac number, because 102041021544021 - 2¹⁴ = 102041021527637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102041021544023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38564254741 + ... + 38564257386.

It is an arithmetic number, because the mean of its divisors is an integer number (7327208652160).

Almost surely, 2^{102041021544021} is an apocalyptic number.

It is an amenable number.

102041021544021 is a deficient number, since it is larger than the sum of its proper divisors (73811986107819).

102041021544021 is an equidigital number, since it uses as much as digits as its factorization.

102041021544021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77128512150 (or 77128512137 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 102041021544021 its reverse (120445120140201), we get a palindrome (222486141684222).

The spelling of 102041021544021 in words is "one hundred two trillion, forty-one billion, twenty-one million, five hundred forty-four thousand, twenty-one".