1024002130421 has 2 divisors, whose sum is σ = 1024002130422. Its totient is φ = 1024002130420.

The previous prime is 1024002130399. The next prime is 1024002130433. The reversal of 1024002130421 is 1240312004201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 641040422500 + 382961707921 = 800650^2 + 618839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1024002130421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1024002130393 and 1024002130402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1024002138421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512001065210 + 512001065211.

It is an arithmetic number, because the mean of its divisors is an integer number (512001065211).

Almost surely, 2^{1024002130421} is an apocalyptic number.

It is an amenable number.

1024002130421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1024002130421 is an equidigital number, since it uses as much as digits as its factorization.

1024002130421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1024002130421 its reverse (1240312004201), we get a palindrome (2264314134622).

The spelling of 1024002130421 in words is "one trillion, twenty-four billion, two million, one hundred thirty thousand, four hundred twenty-one".