120030006405 has 64 divisors (see below), whose sum is σ = 195644160000. Its totient is φ = 62830867200.

The previous prime is 120030006377. The next prime is 120030006433. The reversal of 120030006405 is 504600030021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120030006377) and next prime (120030006433).

It is not a de Polignac number, because 120030006405 - 2¹⁷ = 120029875333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 135320872 + ... + 135321758.

It is an arithmetic number, because the mean of its divisors is an integer number (3056940000).

Almost surely, 2^120030006405 is an apocalyptic number.

120030006405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120030006405 is a deficient number, since it is larger than the sum of its proper divisors (75614153595).

120030006405 is a wasteful number, since it uses less digits than its factorization.

120030006405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 120030006405 its reverse (504600030021), we get a palindrome (624630036426).

The spelling of 120030006405 in words is "one hundred twenty billion, thirty million, six thousand, four hundred five".