102300601621 has 2 divisors, whose sum is σ = 102300601622. Its totient is φ = 102300601620.

The previous prime is 102300601603. The next prime is 102300601649. The reversal of 102300601621 is 126106003201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90188498596 + 12112103025 = 300314^2 + 110055^2 .

It is a cyclic number.

It is not a de Polignac number, because 102300601621 - 2¹³ = 102300593429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102300601592 and 102300601601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102300601691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51150300810 + 51150300811.

It is an arithmetic number, because the mean of its divisors is an integer number (51150300811).

Almost surely, 2^102300601621 is an apocalyptic number.

It is an amenable number.

102300601621 is a deficient number, since it is larger than the sum of its proper divisors (1).

102300601621 is an equidigital number, since it uses as much as digits as its factorization.

102300601621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 102300601621 its reverse (126106003201), we get a palindrome (228406604822).

It can be divided in two parts, 102300 and 601621, that added together give a square (703921 = 839²).

The spelling of 102300601621 in words is "one hundred two billion, three hundred million, six hundred one thousand, six hundred twenty-one".