40420411121 has 8 divisors (see below), whose sum is σ = 42600280800. Its totient is φ = 38245789440.

The previous prime is 40420411111. The next prime is 40420411183. The reversal of 40420411121 is 12111402404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40420411121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40420411093 and 40420411102.

It is not an unprimeable number, because it can be changed into a prime (40420411111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296176 + ... + 1326993.

It is an arithmetic number, because the mean of its divisors is an integer number (5325035100).

Almost surely, 2^40420411121 is an apocalyptic number.

It is an amenable number.

40420411121 is a deficient number, since it is larger than the sum of its proper divisors (2179869679).

40420411121 is a wasteful number, since it uses less digits than its factorization.

40420411121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623999.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 40420411121 its reverse (12111402404), we get a palindrome (52531813525).

The spelling of 40420411121 in words is "forty billion, four hundred twenty million, four hundred eleven thousand, one hundred twenty-one".