1021103203144 has 16 divisors (see below), whose sum is σ = 1919901571200. Its totient is φ = 509129450832.

The previous prime is 1021103203129. The next prime is 1021103203201. The reversal of 1021103203144 is 4413023011201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177765792 + ... + 177771535.

It is an arithmetic number, because the mean of its divisors is an integer number (119993848200).

Almost surely, 2^{1021103203144} is an apocalyptic number.

It is an amenable number.

1021103203144 is a deficient number, since it is larger than the sum of its proper divisors (898798368056).

1021103203144 is a wasteful number, since it uses less digits than its factorization.

1021103203144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355537692 (or 355537688 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1021103203144 its reverse (4413023011201), we get a palindrome (5434126214345).

The spelling of 1021103203144 in words is "one trillion, twenty-one billion, one hundred three million, two hundred three thousand, one hundred forty-four".