11213323123031 has 2 divisors, whose sum is σ = 11213323123032. Its totient is φ = 11213323123030.

The previous prime is 11213323122977. The next prime is 11213323123087. The reversal of 11213323123031 is 13032132331211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11213323123031 is a prime.

It is a super-2 number, since 2×11213323123031² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11213323123631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606661561515 + 5606661561516.

It is an arithmetic number, because the mean of its divisors is an integer number (5606661561516).

Almost surely, 2^{11213323123031} is an apocalyptic number.

11213323123031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213323123031 is an equidigital number, since it uses as much as digits as its factorization.

11213323123031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 11213323123031 its reverse (13032132331211), we get a palindrome (24245455454242).

The spelling of 11213323123031 in words is "eleven trillion, two hundred thirteen billion, three hundred twenty-three million, one hundred twenty-three thousand, thirty-one".