1040420312305 has 16 divisors (see below), whose sum is σ = 1362878524800. Its totient is φ = 756183900160.

The previous prime is 1040420312303. The next prime is 1040420312353. The reversal of 1040420312305 is 5032130240401.

It is not a de Polignac number, because 1040420312305 - 2¹ = 1040420312303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040420312305.

It is not an unprimeable number, because it can be changed into a prime (1040420312303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5981200 + ... + 6152689.

It is an arithmetic number, because the mean of its divisors is an integer number (85179907800).

Almost surely, 2^{1040420312305} is an apocalyptic number.

It is an amenable number.

1040420312305 is a deficient number, since it is larger than the sum of its proper divisors (322458212495).

1040420312305 is a wasteful number, since it uses less digits than its factorization.

1040420312305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12135464.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 1040420312305 its reverse (5032130240401), we get a palindrome (6072550552706).

The spelling of 1040420312305 in words is "one trillion, forty billion, four hundred twenty million, three hundred twelve thousand, three hundred five".