1302420401 has 2 divisors, whose sum is σ = 1302420402. Its totient is φ = 1302420400.

The previous prime is 1302420349. The next prime is 1302420403. The reversal of 1302420401 is 1040242031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1299530401 + 2890000 = 36049^2 + 1700^2 .

It is an emirp because it is prime and its reverse (1040242031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1302420401 - 2¹⁸ = 1302158257 is a prime.

Together with 1302420403, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1302420401.

It is not a weakly prime, because it can be changed into another prime (1302420403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651210200 + 651210201.

It is an arithmetic number, because the mean of its divisors is an integer number (651210201).

Almost surely, 2^1302420401 is an apocalyptic number.

It is an amenable number.

1302420401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302420401 is an equidigital number, since it uses as much as digits as its factorization.

1302420401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1302420401 is about 36089.0620687210. The cubic root of 1302420401 is about 1092.0697986241.

Adding to 1302420401 its reverse (1040242031), we get a palindrome (2342662432).

The spelling of 1302420401 in words is "one billion, three hundred two million, four hundred twenty thousand, four hundred one".