1105403013220 has 48 divisors (see below), whose sum is σ = 2681341221888. Its totient is φ = 378319746560.

The previous prime is 1105403013191. The next prime is 1105403013229. The reversal of 1105403013220 is 223103045011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1105403013191 and 1105403013200.

It is not an unprimeable number, because it can be changed into a prime (1105403013229) 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, 147777412 + ... + 147784891.

It is an arithmetic number, because the mean of its divisors is an integer number (55861275456).

Almost surely, 2^{1105403013220} is an apocalyptic number.

1105403013220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105403013220 is an abundant number, since it is smaller than the sum of its proper divisors (1575938208668).

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

1105403013220 is a wasteful number, since it uses less digits than its factorization.

1105403013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295562340 (or 295562338 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 1105403013220 its reverse (223103045011), we get a palindrome (1328506058231).

The spelling of 1105403013220 in words is "one trillion, one hundred five billion, four hundred three million, thirteen thousand, two hundred twenty".