1211320234 has 16 divisors (see below), whose sum is σ = 1871733600. Its totient is φ = 587598480.

The previous prime is 1211320217. The next prime is 1211320241. The reversal of 1211320234 is 4320231121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34452 + ... + 60079.

It is an arithmetic number, because the mean of its divisors is an integer number (116983350).

Almost surely, 2^1211320234 is an apocalyptic number.

1211320234 is a deficient number, since it is larger than the sum of its proper divisors (660413366).

1211320234 is a wasteful number, since it uses less digits than its factorization.

1211320234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94725.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1211320234 is about 34804.0261176778. The cubic root of 1211320234 is about 1065.9896563101.

Adding to 1211320234 its reverse (4320231121), we get a palindrome (5531551355).

The spelling of 1211320234 in words is "one billion, two hundred eleven million, three hundred twenty thousand, two hundred thirty-four".