1101431003203 has 4 divisors (see below), whose sum is σ = 1102292170240. Its totient is φ = 1100569836168.

The previous prime is 1101431003107. The next prime is 1101431003227. The reversal of 1101431003203 is 3023001341011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1101431003203 - 2²⁹ = 1100894132291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101431003273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430581600 + ... + 430584157.

It is an arithmetic number, because the mean of its divisors is an integer number (275573042560).

Almost surely, 2^{1101431003203} is an apocalyptic number.

1101431003203 is a deficient number, since it is larger than the sum of its proper divisors (861167037).

1101431003203 is an equidigital number, since it uses as much as digits as its factorization.

1101431003203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861167036.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1101431003203 its reverse (3023001341011), we get a palindrome (4124432344214).

The spelling of 1101431003203 in words is "one trillion, one hundred one billion, four hundred thirty-one million, three thousand, two hundred three".