1030530255421 has 8 divisors (see below), whose sum is σ = 1066079979000. Its totient is φ = 994981478400.

The previous prime is 1030530255397. The next prime is 1030530255427. The reversal of 1030530255421 is 1245520350301.

It can be written as a sum of positive squares in 4 ways, for example, as 408973040100 + 621557215321 = 639510^2 + 788389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1030530255421 - 2²³ = 1030521866813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030530255427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2524605 + ... + 2904253.

It is an arithmetic number, because the mean of its divisors is an integer number (133259997375).

Almost surely, 2^{1030530255421} is an apocalyptic number.

It is an amenable number.

1030530255421 is a deficient number, since it is larger than the sum of its proper divisors (35549723579).

1030530255421 is an equidigital number, since it uses as much as digits as its factorization.

1030530255421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473279.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 1030530255421 in words is "one trillion, thirty billion, five hundred thirty million, two hundred fifty-five thousand, four hundred twenty-one".