1131120212 has 6 divisors (see below), whose sum is σ = 1979460378. Its totient is φ = 565560104.

The previous prime is 1131120187. The next prime is 1131120253. The reversal of 1131120212 is 2120211311.

It can be written as a sum of positive squares in only one way, i.e., 988222096 + 142898116 = 31436^2 + 11954^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141390023 + ... + 141390030.

It is an arithmetic number, because the mean of its divisors is an integer number (329910063).

Almost surely, 2^1131120212 is an apocalyptic number.

It is an amenable number.

1131120212 is a deficient number, since it is larger than the sum of its proper divisors (848340166).

1131120212 is a wasteful number, since it uses less digits than its factorization.

1131120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282780057 (or 282780055 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1131120212 is about 33632.1306491278. The cubic root of 1131120212 is about 1041.9245097418.

Adding to 1131120212 its reverse (2120211311), we get a palindrome (3251331523).

The spelling of 1131120212 in words is "one billion, one hundred thirty-one million, one hundred twenty thousand, two hundred twelve".