1100102100420 has 48 divisors (see below), whose sum is σ = 3261479171328. Its totient is φ = 276104056320.

The previous prime is 1100102100413. The next prime is 1100102100479. The reversal of 1100102100420 is 240012010011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1100102100396 and 1100102100405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539264716 + ... + 539266755.

It is an arithmetic number, because the mean of its divisors is an integer number (67947482736).

Almost surely, 2^{1100102100420} is an apocalyptic number.

1100102100420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100102100420 is an abundant number, since it is smaller than the sum of its proper divisors (2161377070908).

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

1100102100420 is a wasteful number, since it uses less digits than its factorization.

1100102100420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078531500 (or 1078531498 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1100102100420 its reverse (240012010011), we get a palindrome (1340114110431).

The spelling of 1100102100420 in words is "one trillion, one hundred billion, one hundred two million, one hundred thousand, four hundred twenty".