11131213202131 has 16 divisors (see below), whose sum is σ = 12675296793600. Its totient is φ = 9676113272320.

The previous prime is 11131213202107. The next prime is 11131213202143. The reversal of 11131213202131 is 13120231213111.

It is not a de Polignac number, because 11131213202131 - 2¹³ = 11131213193939 is a prime.

It is a super-2 number, since 2×11131213202131² (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 (11137213202131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6512206 + ... + 8041843.

It is an arithmetic number, because the mean of its divisors is an integer number (792206049600).

Almost surely, 2^{11131213202131} is an apocalyptic number.

11131213202131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11131213202131 is a deficient number, since it is larger than the sum of its proper divisors (1544083591469).

11131213202131 is a wasteful number, since it uses less digits than its factorization.

11131213202131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14557106.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 11131213202131 its reverse (13120231213111), we get a palindrome (24251444415242).

The spelling of 11131213202131 in words is "eleven trillion, one hundred thirty-one billion, two hundred thirteen million, two hundred two thousand, one hundred thirty-one".