30420420134 has 12 divisors (see below), whose sum is σ = 49410682956. Its totient is φ = 14040193752.

The previous prime is 30420420131. The next prime is 30420420137. The reversal of 30420420134 is 43102402403.

It is an interprime number because it is at equal distance from previous prime (30420420131) and next prime (30420420137).

It is a super-2 number, since 2×30420420134² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420420131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45000284 + ... + 45000959.

It is an arithmetic number, because the mean of its divisors is an integer number (4117556913).

Almost surely, 2^30420420134 is an apocalyptic number.

30420420134 is a deficient number, since it is larger than the sum of its proper divisors (18990262822).

30420420134 is a wasteful number, since it uses less digits than its factorization.

30420420134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90001271 (or 90001258 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30420420134 its reverse (43102402403), we get a palindrome (73522822537).

The spelling of 30420420134 in words is "thirty billion, four hundred twenty million, four hundred twenty thousand, one hundred thirty-four".