30402122141 has 4 divisors (see below), whose sum is σ = 30407061312. Its totient is φ = 30397182972.

The previous prime is 30402122123. The next prime is 30402122173. The reversal of 30402122141 is 14122120403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30402122141 - 2⁶ = 30402122077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30402125141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2460341 + ... + 2472666.

It is an arithmetic number, because the mean of its divisors is an integer number (7601765328).

Almost surely, 2^30402122141 is an apocalyptic number.

It is an amenable number.

30402122141 is a deficient number, since it is larger than the sum of its proper divisors (4939171).

30402122141 is an equidigital number, since it uses as much as digits as its factorization.

30402122141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4939170.

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

Adding to 30402122141 its reverse (14122120403), we get a palindrome (44524242544).

The spelling of 30402122141 in words is "thirty billion, four hundred two million, one hundred twenty-two thousand, one hundred forty-one".