11123212133131 has 8 divisors (see below), whose sum is σ = 12886382745824. Its totient is φ = 9403576597440.

The previous prime is 11123212133129. The next prime is 11123212133171. The reversal of 11123212133131 is 13133121232111.

11123212133131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11123212133131 - 2¹ = 11123212133129 is a prime.

It is a super-2 number, since 2×11123212133131² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11123212133096 and 11123212133105.

It is not an unprimeable number, because it can be changed into a prime (11123212133171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10883768700 + ... + 10883769721.

It is an arithmetic number, because the mean of its divisors is an integer number (1610797843228).

Almost surely, 2^{11123212133131} is an apocalyptic number.

11123212133131 is a deficient number, since it is larger than the sum of its proper divisors (1763170612693).

11123212133131 is an equidigital number, since it uses as much as digits as its factorization.

11123212133131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21767538501.

The product of its digits is 648, while the sum is 25.

Adding to 11123212133131 its reverse (13133121232111), we get a palindrome (24256333365242).

The spelling of 11123212133131 in words is "eleven trillion, one hundred twenty-three billion, two hundred twelve million, one hundred thirty-three thousand, one hundred thirty-one".