11021100021031 has 2 divisors, whose sum is σ = 11021100021032. Its totient is φ = 11021100021030.

The previous prime is 11021100020873. The next prime is 11021100021047. The reversal of 11021100021031 is 13012000112011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11021100021031 - 2²⁹ = 11020563150119 is a prime.

It is a super-2 number, since 2×11021100021031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021100021431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510550010515 + 5510550010516.

It is an arithmetic number, because the mean of its divisors is an integer number (5510550010516).

Almost surely, 2^{11021100021031} is an apocalyptic number.

11021100021031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021100021031 is an equidigital number, since it uses as much as digits as its factorization.

11021100021031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11021100021031 its reverse (13012000112011), we get a palindrome (24033100133042).

The spelling of 11021100021031 in words is "eleven trillion, twenty-one billion, one hundred million, twenty-one thousand, thirty-one".