1120001213 has 4 divisors (see below), whose sum is σ = 1120072800. Its totient is φ = 1119929628.

The previous prime is 1120001209. The next prime is 1120001237. The reversal of 1120001213 is 3121000211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1120001213 - 2² = 1120001209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120001194 and 1120001203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120001243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145 + ... + 47342.

It is an arithmetic number, because the mean of its divisors is an integer number (280018200).

Almost surely, 2^1120001213 is an apocalyptic number.

It is an amenable number.

1120001213 is a deficient number, since it is larger than the sum of its proper divisors (71587).

1120001213 is an equidigital number, since it uses as much as digits as its factorization.

1120001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71586.

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

The square root of 1120001213 is about 33466.4191840119. The cubic root of 1120001213 is about 1038.4991952805.

Adding to 1120001213 its reverse (3121000211), we get a palindrome (4241001424).

The spelling of 1120001213 in words is "one billion, one hundred twenty million, one thousand, two hundred thirteen".