1321124211 has 12 divisors (see below), whose sum is σ = 2081771640. Its totient is φ = 800681280.

The previous prime is 1321124171. The next prime is 1321124219. The reversal of 1321124211 is 1124211231.

1321124211 is a `hidden beast` number, since 132 + 112 + 421 + 1 = 666.

It is not a de Polignac number, because 1321124211 - 2²² = 1316929907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321124219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6672246 + ... + 6672443.

It is an arithmetic number, because the mean of its divisors is an integer number (173480970).

Almost surely, 2^1321124211 is an apocalyptic number.

1321124211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1321124211 is a deficient number, since it is larger than the sum of its proper divisors (760647429).

1321124211 is a wasteful number, since it uses less digits than its factorization.

1321124211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13344706 (or 13344703 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1321124211 is about 36347.2724011032. The cubic root of 1321124211 is about 1097.2726402940.

Adding to 1321124211 its reverse (1124211231), we get a palindrome (2445335442).

The spelling of 1321124211 in words is "one billion, three hundred twenty-one million, one hundred twenty-four thousand, two hundred eleven".