1021102111153 has 2 divisors, whose sum is σ = 1021102111154. Its totient is φ = 1021102111152.

The previous prime is 1021102111111. The next prime is 1021102111213. The reversal of 1021102111153 is 3511112011201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 925257381409 + 95844729744 = 961903^2 + 309588^2 .

It is an emirp because it is prime and its reverse (3511112011201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1021102111153 - 2⁹ = 1021102110641 is a prime.

It is a super-3 number, since 3×1021102111153³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1021102111153.

It is not a weakly prime, because it can be changed into another prime (1021102111553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510551055576 + 510551055577.

It is an arithmetic number, because the mean of its divisors is an integer number (510551055577).

Almost surely, 2^{1021102111153} is an apocalyptic number.

It is an amenable number.

1021102111153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021102111153 is an equidigital number, since it uses as much as digits as its factorization.

1021102111153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 19.

Adding to 1021102111153 its reverse (3511112011201), we get a palindrome (4532214122354).

The spelling of 1021102111153 in words is "one trillion, twenty-one billion, one hundred two million, one hundred eleven thousand, one hundred fifty-three".