1051420400204 has 6 divisors (see below), whose sum is σ = 1839985700364. Its totient is φ = 525710200100.

The previous prime is 1051420400179. The next prime is 1051420400207. The reversal of 1051420400204 is 4020040241501.

It is a super-2 number, since 2×1051420400204² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051420400204.

It is not an unprimeable number, because it can be changed into a prime (1051420400207) 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 as a sum of consecutive naturals, namely, 131427550022 + ... + 131427550029.

It is an arithmetic number, because the mean of its divisors is an integer number (306664283394).

Almost surely, 2^{1051420400204} is an apocalyptic number.

It is an amenable number.

1051420400204 is a deficient number, since it is larger than the sum of its proper divisors (788565300160).

1051420400204 is a wasteful number, since it uses less digits than its factorization.

1051420400204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262855100055 (or 262855100053 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 1051420400204 its reverse (4020040241501), we get a palindrome (5071460641705).

The spelling of 1051420400204 in words is "one trillion, fifty-one billion, four hundred twenty million, four hundred thousand, two hundred four".