1131403020303 has 16 divisors (see below), whose sum is σ = 1533822300416. Its totient is φ = 741688643520.

The previous prime is 1131403020283. The next prime is 1131403020323. The reversal of 1131403020303 is 3030203041311.

It is an interprime number because it is at equal distance from previous prime (1131403020283) and next prime (1131403020323).

It is not a de Polignac number, because 1131403020303 - 2²⁸ = 1131134584847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131403020303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131403020323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7731475 + ... + 7876452.

It is an arithmetic number, because the mean of its divisors is an integer number (95863893776).

Almost surely, 2^{1131403020303} is an apocalyptic number.

1131403020303 is a deficient number, since it is larger than the sum of its proper divisors (402419280113).

1131403020303 is a wasteful number, since it uses less digits than its factorization.

1131403020303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15608334.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1131403020303 its reverse (3030203041311), we get a palindrome (4161606061614).

The spelling of 1131403020303 in words is "one trillion, one hundred thirty-one billion, four hundred three million, twenty thousand, three hundred three".