102021041 has 4 divisors (see below), whose sum is σ = 102610932. Its totient is φ = 101431152.

The previous prime is 102021037. The next prime is 102021083. The reversal of 102021041 is 140120201.

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 39942400 + 62078641 = 6320^2 + 7879^2 .

It is a cyclic number.

It is not a de Polignac number, because 102021041 - 2² = 102021037 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102021001) 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, 294686 + ... + 295031.

It is an arithmetic number, because the mean of its divisors is an integer number (25652733).

Almost surely, 2^102021041 is an apocalyptic number.

It is an amenable number.

102021041 is a deficient number, since it is larger than the sum of its proper divisors (589891).

102021041 is an equidigital number, since it uses as much as digits as its factorization.

102021041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589890.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 102021041 is about 10100.5465693694. The cubic root of 102021041 is about 467.2649982308.

Adding to 102021041 its reverse (140120201), we get a palindrome (242141242).

The spelling of 102021041 in words is "one hundred two million, twenty-one thousand, forty-one".