405501042120030 has 96 divisors (see below), whose sum is σ = 1055300783243616. Its totient is φ = 108031251025152.

The previous prime is 405501042120017. The next prime is 405501042120043. The reversal of 405501042120030 is 30021240105504.

405501042120030 is a `hidden beast` number, since 4 + 0 + 5 + 5 + 0 + 1 + 0 + 421 + 200 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (405501042120017) and next prime (405501042120043).

It is a super-3 number, since 3×405501042120030³ (a number of 45 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 405501042119976 and 405501042120003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5213866224 + ... + 5213943996.

It is an arithmetic number, because the mean of its divisors is an integer number (10992716492121).

Almost surely, 2^{405501042120030} is an apocalyptic number.

405501042120030 is an abundant number, since it is smaller than the sum of its proper divisors (649799741123586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405501042120030 is a wasteful number, since it uses less digits than its factorization.

405501042120030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131882 (or 131879 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 405501042120030 its reverse (30021240105504), we get a palindrome (435522282225534).

The spelling of 405501042120030 in words is "four hundred five trillion, five hundred one billion, forty-two million, one hundred twenty thousand, thirty".