11620203 has 24 divisors (see below), whose sum is σ = 18186192. Its totient is φ = 6580224.

The previous prime is 11620201. The next prime is 11620211. The reversal of 11620203 is 30202611.

It is not a de Polignac number, because 11620203 - 2¹ = 11620201 is a prime.

It is a super-2 number, since 2×11620203² = 270058235522418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11620201) 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, 19851 + ... + 20427.

It is an arithmetic number, because the mean of its divisors is an integer number (757758).

Almost surely, 2^11620203 is an apocalyptic number.

11620203 is a deficient number, since it is larger than the sum of its proper divisors (6565989).

11620203 is a wasteful number, since it uses less digits than its factorization.

11620203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 11620203 is about 3408.8418854502. The cubic root of 11620203 is about 226.5015813036.

Adding to 11620203 its reverse (30202611), we get a palindrome (41822814).

The spelling of 11620203 in words is "eleven million, six hundred twenty thousand, two hundred three".