1030421203455 has 64 divisors (see below), whose sum is σ = 1937790167040. Its totient is φ = 457686941184.

The previous prime is 1030421203453. The next prime is 1030421203477. The reversal of 1030421203455 is 5543021240301.

It is not a de Polignac number, because 1030421203455 - 2¹ = 1030421203453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030421203453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2641981 + ... + 3006809.

It is an arithmetic number, because the mean of its divisors is an integer number (30277971360).

Almost surely, 2^{1030421203455} is an apocalyptic number.

1030421203455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1030421203455 is a deficient number, since it is larger than the sum of its proper divisors (907368963585).

1030421203455 is a wasteful number, since it uses less digits than its factorization.

1030421203455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365608.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1030421203455 its reverse (5543021240301), we get a palindrome (6573442443756).

The spelling of 1030421203455 in words is "one trillion, thirty billion, four hundred twenty-one million, two hundred three thousand, four hundred fifty-five".