120020406426 has 32 divisors (see below), whose sum is σ = 273217190400. Its totient is φ = 39031025760.

The previous prime is 120020406413. The next prime is 120020406433. The reversal of 120020406426 is 624604020021.

120020406426 is a `hidden beast` number, since 12 + 0 + 0 + 2 + 0 + 4 + 0 + 642 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 120020406426.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27102666 + ... + 27107093.

It is an arithmetic number, because the mean of its divisors is an integer number (8538037200).

Almost surely, 2^120020406426 is an apocalyptic number.

120020406426 is an abundant number, since it is smaller than the sum of its proper divisors (153196783974).

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

120020406426 is a wasteful number, since it uses less digits than its factorization.

120020406426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54209811 (or 54209805 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 120020406426 its reverse (624604020021), we get a palindrome (744624426447).

The spelling of 120020406426 in words is "one hundred twenty billion, twenty million, four hundred six thousand, four hundred twenty-six".