30420121343 has 16 divisors (see below), whose sum is σ = 31383962400. Its totient is φ = 29480338368.

The previous prime is 30420121313. The next prime is 30420121349. The reversal of 30420121343 is 34312102403.

It is not a de Polignac number, because 30420121343 - 2⁶ = 30420121279 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 (30420121349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14991653 + ... + 14993681.

It is an arithmetic number, because the mean of its divisors is an integer number (1961497650).

Almost surely, 2^30420121343 is an apocalyptic number.

30420121343 is a deficient number, since it is larger than the sum of its proper divisors (963841057).

30420121343 is an frugal number, since it uses more digits than its factorization.

30420121343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279 (or 2161 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30420121343 its reverse (34312102403), we get a palindrome (64732223746).

The spelling of 30420121343 in words is "thirty billion, four hundred twenty million, one hundred twenty-one thousand, three hundred forty-three".