2101032881669 has 2 divisors, whose sum is σ = 2101032881670. Its totient is φ = 2101032881668.

The previous prime is 2101032881611. The next prime is 2101032881713. The reversal of 2101032881669 is 9661882301012.

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., 2010831769444 + 90201112225 = 1418038^2 + 300335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101032881669 is a prime.

It is a super-2 number, since 2×2101032881669² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101032881369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050516440834 + 1050516440835.

It is an arithmetic number, because the mean of its divisors is an integer number (1050516440835).

Almost surely, 2^{2101032881669} is an apocalyptic number.

It is an amenable number.

2101032881669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101032881669 is an equidigital number, since it uses as much as digits as its factorization.

2101032881669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 2101032881669 in words is "two trillion, one hundred one billion, thirty-two million, eight hundred eighty-one thousand, six hundred sixty-nine".