1101213 has 12 divisors (see below), whose sum is σ = 1642368. Its totient is φ = 710280.

The previous prime is 1101211. The next prime is 1101229. The reversal of 1101213 is 3121011.

It is not a de Polignac number, because 1101213 - 2¹ = 1101211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1101195 and 1101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1695 + ... + 2252.

It is an arithmetic number, because the mean of its divisors is an integer number (136864).

2^1101213 is an apocalyptic number.

It is an amenable number.

1101213 is a deficient number, since it is larger than the sum of its proper divisors (541155).

1101213 is a wasteful number, since it uses less digits than its factorization.

1101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984 (or 3981 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1101213 is about 1049.3869638984. The cubic root of 1101213 is about 103.2659417214.

Adding to 1101213 its reverse (3121011), we get a palindrome (4222224).

It can be divided in two parts, 11012 and 13, that added together give a square (11025 = 105²).

The spelling of 1101213 in words is "one million, one hundred one thousand, two hundred thirteen".