1005520031404 has 24 divisors (see below), whose sum is σ = 2116884277760. Its totient is φ = 408256253136.

The previous prime is 1005520031353. The next prime is 1005520031407. The reversal of 1005520031404 is 4041300255001.

It is a happy number.

1005520031404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1005520031404² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1005520031407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945037092 + ... + 945038155.

Almost surely, 2^{1005520031404} is an apocalyptic number.

1005520031404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1005520031404 is an abundant number, since it is smaller than the sum of its proper divisors (1111364246356).

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

1005520031404 is a wasteful number, since it uses less digits than its factorization.

1005520031404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890075277 (or 1890075275 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 1005520031404 its reverse (4041300255001), we get a palindrome (5046820286405).

The spelling of 1005520031404 in words is "one trillion, five billion, five hundred twenty million, thirty-one thousand, four hundred four".