1220103813753 has 48 divisors (see below), whose sum is σ = 1987031065600. Its totient is φ = 739379599200.

The previous prime is 1220103813749. The next prime is 1220103813791. The reversal of 1220103813753 is 3573183010221.

It is a happy number.

1220103813753 is a `hidden beast` number, since 1 + 2 + 201 + 0 + 3 + 81 + 375 + 3 = 666.

It is not a de Polignac number, because 1220103813753 - 2² = 1220103813749 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220103813703) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54975783 + ... + 54997971.

Almost surely, 2^{1220103813753} is an apocalyptic number.

It is an amenable number.

1220103813753 is a deficient number, since it is larger than the sum of its proper divisors (766927251847).

1220103813753 is a wasteful number, since it uses less digits than its factorization.

1220103813753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39051 (or 39034 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Adding to 1220103813753 its reverse (3573183010221), we get a palindrome (4793286823974).

The spelling of 1220103813753 in words is "one trillion, two hundred twenty billion, one hundred three million, eight hundred thirteen thousand, seven hundred fifty-three".