111021023011 has 2 divisors, whose sum is σ = 111021023012. Its totient is φ = 111021023010.

The previous prime is 111021022991. The next prime is 111021023017. The reversal of 111021023011 is 110320120111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111021023011 - 2⁷ = 111021022883 is a prime.

It is a super-2 number, since 2×111021023011² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111021022982 and 111021023000.

It is not a weakly prime, because it can be changed into another prime (111021023017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510511505 + 55510511506.

It is an arithmetic number, because the mean of its divisors is an integer number (55510511506).

Almost surely, 2^111021023011 is an apocalyptic number.

111021023011 is a deficient number, since it is larger than the sum of its proper divisors (1).

111021023011 is an equidigital number, since it uses as much as digits as its factorization.

111021023011 is an evil number, because the sum of its binary digits is even.

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

Adding to 111021023011 its reverse (110320120111), we get a palindrome (221341143122).

The spelling of 111021023011 in words is "one hundred eleven billion, twenty-one million, twenty-three thousand, eleven".