1100020203112 has 8 divisors (see below), whose sum is σ = 2062537880850. Its totient is φ = 550010101552.

The previous prime is 1100020203067. The next prime is 1100020203259. The reversal of 1100020203112 is 2113020200011.

It can be written as a sum of positive squares in only one way, i.e., 778569757956 + 321450445156 = 882366^2 + 566966^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1100020203092 and 1100020203101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68751262687 + ... + 68751262702.

Almost surely, 2^{1100020203112} is an apocalyptic number.

It is an amenable number.

1100020203112 is a deficient number, since it is larger than the sum of its proper divisors (962517677738).

1100020203112 is a wasteful number, since it uses less digits than its factorization.

1100020203112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137502525395 (or 137502525391 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1100020203112 its reverse (2113020200011), we get a palindrome (3213040403123).

The spelling of 1100020203112 in words is "one trillion, one hundred billion, twenty million, two hundred three thousand, one hundred twelve".