1211131334 has 12 divisors (see below), whose sum is σ = 2113300764. Its totient is φ = 519056244.

The previous prime is 1211131333. The next prime is 1211131367. The reversal of 1211131334 is 4331311121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211131333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6179144 + ... + 6179339.

It is an arithmetic number, because the mean of its divisors is an integer number (176108397).

Almost surely, 2^1211131334 is an apocalyptic number.

1211131334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1211131334 is a deficient number, since it is larger than the sum of its proper divisors (902169430).

1211131334 is a wasteful number, since it uses less digits than its factorization.

1211131334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12358499 (or 12358492 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 1211131334 is about 34801.3122453737. The cubic root of 1211131334 is about 1065.9342413151.

Adding to 1211131334 its reverse (4331311121), we get a palindrome (5542442455).

The spelling of 1211131334 in words is "one billion, two hundred eleven million, one hundred thirty-one thousand, three hundred thirty-four".