101110000021 has 2 divisors, whose sum is σ = 101110000022. Its totient is φ = 101110000020.

The previous prime is 101109999979. The next prime is 101110000027. The reversal of 101110000021 is 120000011101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100965062500 + 144937521 = 317750^2 + 12039^2 .

It is a cyclic number.

It is not a de Polignac number, because 101110000021 - 2¹⁷ = 101109868949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101109999959 and 101110000013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101110000027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555000010 + 50555000011.

It is an arithmetic number, because the mean of its divisors is an integer number (50555000011).

Almost surely, 2^101110000021 is an apocalyptic number.

It is an amenable number.

101110000021 is a deficient number, since it is larger than the sum of its proper divisors (1).

101110000021 is an equidigital number, since it uses as much as digits as its factorization.

101110000021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 101110000021 its reverse (120000011101), we get a palindrome (221110011122).

The spelling of 101110000021 in words is "one hundred one billion, one hundred ten million, twenty-one", and thus it is an aban number.