1101203525103 has 32 divisors (see below), whose sum is σ = 1626422894592. Its totient is φ = 657125330400.

The previous prime is 1101203525089. The next prime is 1101203525119. The reversal of 1101203525103 is 3015253021011.

It is not a de Polignac number, because 1101203525103 - 2¹⁴ = 1101203508719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101203525143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4621968 + ... + 4854378.

It is an arithmetic number, because the mean of its divisors is an integer number (50825715456).

Almost surely, 2^{1101203525103} is an apocalyptic number.

1101203525103 is a deficient number, since it is larger than the sum of its proper divisors (525219369489).

1101203525103 is a wasteful number, since it uses less digits than its factorization.

1101203525103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234635.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 1101203525103 its reverse (3015253021011), we get a palindrome (4116456546114).

It can be divided in two parts, 1101203 and 525103, that added together give a triangular number (1626306 = T₁₈₀₃).

The spelling of 1101203525103 in words is "one trillion, one hundred one billion, two hundred three million, five hundred twenty-five thousand, one hundred three".