1040420211011 has 4 divisors (see below), whose sum is σ = 1101621399912. Its totient is φ = 979219022112.

The previous prime is 1040420211001. The next prime is 1040420211043. The reversal of 1040420211011 is 1101120240401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040420211011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 61201188883 = 1040420211011 / (1 + 0 + 4 + 0 + 4 + 2 + 0 + 2 + 1 + 1 + 0 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040420211001) 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 3 ways as a sum of consecutive naturals, for example, 30600594425 + ... + 30600594458.

It is an arithmetic number, because the mean of its divisors is an integer number (275405349978).

Almost surely, 2^{1040420211011} is an apocalyptic number.

1040420211011 is a deficient number, since it is larger than the sum of its proper divisors (61201188901).

1040420211011 is an equidigital number, since it uses as much as digits as its factorization.

1040420211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61201188900.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1040420211011 its reverse (1101120240401), we get a palindrome (2141540451412).

The spelling of 1040420211011 in words is "one trillion, forty billion, four hundred twenty million, two hundred eleven thousand, eleven".