30202154421 has 4 divisors (see below), whose sum is σ = 40269539232. Its totient is φ = 20134769612.

The previous prime is 30202154419. The next prime is 30202154431. The reversal of 30202154421 is 12445120203.

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 30202154421 - 2¹ = 30202154419 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30202154391 and 30202154400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202154431) 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, 5033692401 + ... + 5033692406.

It is an arithmetic number, because the mean of its divisors is an integer number (10067384808).

Almost surely, 2^30202154421 is an apocalyptic number.

It is an amenable number.

30202154421 is a deficient number, since it is larger than the sum of its proper divisors (10067384811).

30202154421 is a wasteful number, since it uses less digits than its factorization.

30202154421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10067384810.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 30202154421 its reverse (12445120203), we get a palindrome (42647274624).

The spelling of 30202154421 in words is "thirty billion, two hundred two million, one hundred fifty-four thousand, four hundred twenty-one".