1131020340203 has 16 divisors (see below), whose sum is σ = 1220128551936. Its totient is φ = 1042214478240.

The previous prime is 1131020340173. The next prime is 1131020340209. The reversal of 1131020340203 is 3020430201311.

It is not a de Polignac number, because 1131020340203 - 2¹⁴ = 1131020323819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131020340209) 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, 20289776 + ... + 20345442.

It is an arithmetic number, because the mean of its divisors is an integer number (76258034496).

Almost surely, 2^{1131020340203} is an apocalyptic number.

1131020340203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1131020340203 is a deficient number, since it is larger than the sum of its proper divisors (89108211733).

1131020340203 is a wasteful number, since it uses less digits than its factorization.

1131020340203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58354.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1131020340203 its reverse (3020430201311), we get a palindrome (4151450541514).

The spelling of 1131020340203 in words is "one trillion, one hundred thirty-one billion, twenty million, three hundred forty thousand, two hundred three".