1103333012021 has 2 divisors, whose sum is σ = 1103333012022. Its totient is φ = 1103333012020.

The previous prime is 1103333012009. The next prime is 1103333012081. The reversal of 1103333012021 is 1202103333011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1084826402500 + 18506609521 = 1041550^2 + 136039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103333012021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1103333011984 and 1103333012002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103333012081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551666506010 + 551666506011.

It is an arithmetic number, because the mean of its divisors is an integer number (551666506011).

Almost surely, 2^{1103333012021} is an apocalyptic number.

It is an amenable number.

1103333012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103333012021 is an equidigital number, since it uses as much as digits as its factorization.

1103333012021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1103333012021 its reverse (1202103333011), we get a palindrome (2305436345032).

The spelling of 1103333012021 in words is "one trillion, one hundred three billion, three hundred thirty-three million, twelve thousand, twenty-one".