30230331002021 has 4 divisors (see below), whose sum is σ = 30235056712812. Its totient is φ = 30225605291232.

The previous prime is 30230331002009. The next prime is 30230331002033. The reversal of 30230331002021 is 12020013303203.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (30230331002009) and next prime (30230331002033).

It can be written as a sum of positive squares in 2 ways, for example, as 13087832879521 + 17142498122500 = 3617711^2 + 4140350^2 .

It is a cyclic number.

It is not a de Polignac number, because 30230331002021 - 2¹⁰ = 30230331000997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30230331001984 and 30230331002002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30230331002821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2362845800 + ... + 2362858593.

It is an arithmetic number, because the mean of its divisors is an integer number (7558764178203).

Almost surely, 2^{30230331002021} is an apocalyptic number.

It is an amenable number.

30230331002021 is a deficient number, since it is larger than the sum of its proper divisors (4725710791).

30230331002021 is an equidigital number, since it uses as much as digits as its factorization.

30230331002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725710790.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30230331002021 its reverse (12020013303203), we get a palindrome (42250344305224).

The spelling of 30230331002021 in words is "thirty trillion, two hundred thirty billion, three hundred thirty-one million, two thousand, twenty-one".