30202041421 has 4 divisors (see below), whose sum is σ = 30203510332. Its totient is φ = 30200572512.

The previous prime is 30202041371. The next prime is 30202041427. The reversal of 30202041421 is 12414020203.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29742796521 + 459244900 = 172461^2 + 21430^2 .

It is a cyclic number.

It is not a de Polignac number, because 30202041421 - 2¹³ = 30202033229 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 (30202041427) 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, 703170 + ... + 744883.

It is an arithmetic number, because the mean of its divisors is an integer number (7550877583).

Almost surely, 2^30202041421 is an apocalyptic number.

It is an amenable number.

30202041421 is a deficient number, since it is larger than the sum of its proper divisors (1468911).

30202041421 is a wasteful number, since it uses less digits than its factorization.

30202041421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468910.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 30202041421 its reverse (12414020203), we get a palindrome (42616061624).

The spelling of 30202041421 in words is "thirty billion, two hundred two million, forty-one thousand, four hundred twenty-one".