102321601 has 4 divisors (see below), whose sum is σ = 103068612. Its totient is φ = 101574592.

The previous prime is 102321587. The next prime is 102321619. The reversal of 102321601 is 106123201.

102321601 is nontrivially palindromic in base 6.

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 29986576 + 72335025 = 5476^2 + 8505^2 .

It is a cyclic number.

It is not a de Polignac number, because 102321601 - 2¹⁹ = 101797313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102321671) 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, 373300 + ... + 373573.

It is an arithmetic number, because the mean of its divisors is an integer number (25767153).

Almost surely, 2^102321601 is an apocalyptic number.

It is an amenable number.

102321601 is a deficient number, since it is larger than the sum of its proper divisors (747011).

102321601 is an equidigital number, since it uses as much as digits as its factorization.

102321601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747010.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 102321601 is about 10115.4140300830. The cubic root of 102321601 is about 467.7234117626.

Adding to 102321601 its reverse (106123201), we get a palindrome (208444802).

The spelling of 102321601 in words is "one hundred two million, three hundred twenty-one thousand, six hundred one".