1404111312020 has 48 divisors (see below), whose sum is σ = 3124094330448. Its totient is φ = 528266035200.

The previous prime is 1404111311971. The next prime is 1404111312029. The reversal of 1404111312020 is 202131114041.

It can be written as a sum of positive squares in 8 ways, for example, as 2411595664 + 1401699716356 = 49108^2 + 1183934^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1404111311983 and 1404111312001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404111312029) 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, 801581 + ... + 1857620.

It is an arithmetic number, because the mean of its divisors is an integer number (65085298551).

Almost surely, 2^{1404111312020} is an apocalyptic number.

1404111312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404111312020 is an abundant number, since it is smaller than the sum of its proper divisors (1719983018428).

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

1404111312020 is a wasteful number, since it uses less digits than its factorization.

1404111312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660780 (or 2660778 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1404111312020 its reverse (202131114041), we get a palindrome (1606242426061).

The spelling of 1404111312020 in words is "one trillion, four hundred four billion, one hundred eleven million, three hundred twelve thousand, twenty".