1023301421 has 2 divisors, whose sum is σ = 1023301422. Its totient is φ = 1023301420.

The previous prime is 1023301381. The next prime is 1023301423. The reversal of 1023301421 is 1241033201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 515925796 + 507375625 = 22714^2 + 22525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023301421 is a prime.

Together with 1023301423, 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 1023301421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023301423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511650710 + 511650711.

It is an arithmetic number, because the mean of its divisors is an integer number (511650711).

Almost surely, 2^1023301421 is an apocalyptic number.

It is an amenable number.

1023301421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023301421 is an equidigital number, since it uses as much as digits as its factorization.

1023301421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1023301421 is about 31989.0828408693. The cubic root of 1023301421 is about 1007.7075809024.

Adding to 1023301421 its reverse (1241033201), we get a palindrome (2264334622).

The spelling of 1023301421 in words is "one billion, twenty-three million, three hundred one thousand, four hundred twenty-one".