1102103021 has 2 divisors, whose sum is σ = 1102103022. Its totient is φ = 1102103020.

The previous prime is 1102103017. The next prime is 1102103059. The reversal of 1102103021 is 1203012011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 936054025 + 166048996 = 30595^2 + 12886^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102103021 - 2² = 1102103017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102102993 and 1102103011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102102021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551051510 + 551051511.

It is an arithmetic number, because the mean of its divisors is an integer number (551051511).

Almost surely, 2^1102103021 is an apocalyptic number.

It is an amenable number.

1102103021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102103021 is an equidigital number, since it uses as much as digits as its factorization.

1102103021 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 11.

The square root of 1102103021 is about 33197.9369991570. The cubic root of 1102103021 is about 1032.9375472002.

Adding to 1102103021 its reverse (1203012011), we get a palindrome (2305115032).

The spelling of 1102103021 in words is "one billion, one hundred two million, one hundred three thousand, twenty-one".