11203213021131 has 4 divisors (see below), whose sum is σ = 14937617361512. Its totient is φ = 7468808680752.

The previous prime is 11203213021097. The next prime is 11203213021141. The reversal of 11203213021131 is 13112031230211.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11203213021131 - 2¹⁰ = 11203213020107 is a prime.

It is a super-2 number, since 2×11203213021131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11203213021098 and 11203213021107.

It is not an unprimeable number, because it can be changed into a prime (11203213021141) 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, 1867202170186 + ... + 1867202170191.

It is an arithmetic number, because the mean of its divisors is an integer number (3734404340378).

Almost surely, 2^{11203213021131} is an apocalyptic number.

11203213021131 is a deficient number, since it is larger than the sum of its proper divisors (3734404340381).

11203213021131 is an equidigital number, since it uses as much as digits as its factorization.

11203213021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734404340380.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11203213021131 its reverse (13112031230211), we get a palindrome (24315244251342).

The spelling of 11203213021131 in words is "eleven trillion, two hundred three billion, two hundred thirteen million, twenty-one thousand, one hundred thirty-one".