11231203001211 has 48 divisors (see below), whose sum is σ = 16706626533376. Its totient is φ = 7268329127808.

The previous prime is 11231203001209. The next prime is 11231203001231. The reversal of 11231203001211 is 11210030213211.

11231203001211 is a `hidden beast` number, since 1 + 123 + 120 + 300 + 121 + 1 = 666.

It is not a de Polignac number, because 11231203001211 - 2¹ = 11231203001209 is a prime.

It is a super-2 number, since 2×11231203001211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231203001231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10521270 + ... + 11539476.

Almost surely, 2^{11231203001211} is an apocalyptic number.

11231203001211 is a deficient number, since it is larger than the sum of its proper divisors (5475423532165).

11231203001211 is a wasteful number, since it uses less digits than its factorization.

11231203001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018552 (or 1018549 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11231203001211 its reverse (11210030213211), we get a palindrome (22441233214422).

The spelling of 11231203001211 in words is "eleven trillion, two hundred thirty-one billion, two hundred three million, one thousand, two hundred eleven".