1103623213 has 24 divisors (see below), whose sum is σ = 1395712640. Its totient is φ = 854172000.

The previous prime is 1103623211. The next prime is 1103623231. The reversal of 1103623213 is 3123263011.

It is not a de Polignac number, because 1103623213 - 2¹ = 1103623211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103623211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123583 + ... + 132211.

Almost surely, 2^1103623213 is an apocalyptic number.

It is an amenable number.

1103623213 is a deficient number, since it is larger than the sum of its proper divisors (292089427).

1103623213 is a wasteful number, since it uses less digits than its factorization.

1103623213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8809 (or 8798 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1103623213 is about 33220.8249897560. The cubic root of 1103623213 is about 1033.4122584068.

Adding to 1103623213 its reverse (3123263011), we get a palindrome (4226886224).

The spelling of 1103623213 in words is "one billion, one hundred three million, six hundred twenty-three thousand, two hundred thirteen".