1211320414 has 16 divisors (see below), whose sum is σ = 2025118800. Its totient is φ = 540031104.

The previous prime is 1211320399. The next prime is 1211320423. The reversal of 1211320414 is 4140231121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1211320391 and 1211320400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936909 + ... + 938200.

It is an arithmetic number, because the mean of its divisors is an integer number (126569925).

Almost surely, 2^1211320414 is an apocalyptic number.

1211320414 is a deficient number, since it is larger than the sum of its proper divisors (813798386).

1211320414 is a wasteful number, since it uses less digits than its factorization.

1211320414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875147.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1211320414 is about 34804.0287035855. The cubic root of 1211320414 is about 1065.9897091115.

Adding to 1211320414 its reverse (4140231121), we get a palindrome (5351551535).

The spelling of 1211320414 in words is "one billion, two hundred eleven million, three hundred twenty thousand, four hundred fourteen".