101543355031589 has 2 divisors, whose sum is σ = 101543355031590. Its totient is φ = 101543355031588.

The previous prime is 101543355031543. The next prime is 101543355031609. The reversal of 101543355031589 is 985130553345101.

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., 88819937371489 + 12723417660100 = 9424433^2 + 3566990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101543355031589 is a prime.

It is a super-2 number, since 2×101543355031589² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101543355031589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101543355031529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50771677515794 + 50771677515795.

It is an arithmetic number, because the mean of its divisors is an integer number (50771677515795).

Almost surely, 2^{101543355031589} is an apocalyptic number.

It is an amenable number.

101543355031589 is a deficient number, since it is larger than the sum of its proper divisors (1).

101543355031589 is an equidigital number, since it uses as much as digits as its factorization.

101543355031589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860000, while the sum is 53.

The spelling of 101543355031589 in words is "one hundred one trillion, five hundred forty-three billion, three hundred fifty-five million, thirty-one thousand, five hundred eighty-nine".