1131020340212 has 24 divisors (see below), whose sum is σ = 2262103893504. Its totient is φ = 484709457312.

The previous prime is 1131020340209. The next prime is 1131020340217. The reversal of 1131020340212 is 2120430201311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131020340217) 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 7 ways as a sum of consecutive naturals, for example, 490013 + ... + 1581819.

It is an arithmetic number, because the mean of its divisors is an integer number (94254328896).

Almost surely, 2^{1131020340212} is an apocalyptic number.

It is an amenable number.

1131020340212 is an abundant number, since it is smaller than the sum of its proper divisors (1131083553292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131020340212 is a wasteful number, since it uses less digits than its factorization.

1131020340212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128815 (or 1128813 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1131020340212 its reverse (2120430201311), we get a palindrome (3251450541523).

The spelling of 1131020340212 in words is "one trillion, one hundred thirty-one billion, twenty million, three hundred forty thousand, two hundred twelve".