11210220131 has 4 divisors (see below), whose sum is σ = 12229331064. Its totient is φ = 10191109200.

The previous prime is 11210220113. The next prime is 11210220143. The reversal of 11210220131 is 13102201211.

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

It is a cyclic number.

It is not a de Polignac number, because 11210220131 - 2⁶ = 11210220067 is a prime.

It is a super-2 number, since 2×11210220131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11210220101) 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, 509555450 + ... + 509555471.

It is an arithmetic number, because the mean of its divisors is an integer number (3057332766).

Almost surely, 2^11210220131 is an apocalyptic number.

11210220131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11210220131 is a deficient number, since it is larger than the sum of its proper divisors (1019110933).

11210220131 is a wasteful number, since it uses less digits than its factorization.

11210220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019110932.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11210220131 its reverse (13102201211), we get a palindrome (24312421342).

The spelling of 11210220131 in words is "eleven billion, two hundred ten million, two hundred twenty thousand, one hundred thirty-one".