1021102111213 has 2 divisors, whose sum is σ = 1021102111214. Its totient is φ = 1021102111212.

The previous prime is 1021102111153. The next prime is 1021102111219. The reversal of 1021102111213 is 3121112011201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1013843582404 + 7258528809 = 1006898^2 + 85197^2 .

It is an emirp because it is prime and its reverse (3121112011201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021102111213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021102111219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510551055606 + 510551055607.

It is an arithmetic number, because the mean of its divisors is an integer number (510551055607).

Almost surely, 2^{1021102111213} is an apocalyptic number.

It is an amenable number.

1021102111213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021102111213 is an equidigital number, since it uses as much as digits as its factorization.

1021102111213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1021102111213 its reverse (3121112011201), we get a palindrome (4142214122414).

The spelling of 1021102111213 in words is "one trillion, twenty-one billion, one hundred two million, one hundred eleven thousand, two hundred thirteen".