1210320011 has 8 divisors (see below), whose sum is σ = 1278418944. Its totient is φ = 1144037160.

The previous prime is 1210319963. The next prime is 1210320029. The reversal of 1210320011 is 1100230121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210320011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210319974 and 1210320001.

It is not an unprimeable number, because it can be changed into a prime (1210320091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452651 + ... + 455316.

It is an arithmetic number, because the mean of its divisors is an integer number (159802368).

Almost surely, 2^1210320011 is an apocalyptic number.

1210320011 is a deficient number, since it is larger than the sum of its proper divisors (68098933).

1210320011 is an equidigital number, since it uses as much as digits as its factorization.

1210320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908041.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1210320011 is about 34789.6537924711. The cubic root of 1210320011 is about 1065.6961691026.

Adding to 1210320011 its reverse (1100230121), we get a palindrome (2310550132).

The spelling of 1210320011 in words is "one billion, two hundred ten million, three hundred twenty thousand, eleven".