101543214989 has 2 divisors, whose sum is σ = 101543214990. Its totient is φ = 101543214988.

The previous prime is 101543214961. The next prime is 101543215013. The reversal of 101543214989 is 989412345101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62078214025 + 39465000964 = 249155^2 + 198658^2 .

It is an emirp because it is prime and its reverse (989412345101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101543214989 - 2²⁴ = 101526437773 is a prime.

It is a super-2 number, since 2×101543214989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101543219989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50771607494 + 50771607495.

It is an arithmetic number, because the mean of its divisors is an integer number (50771607495).

Almost surely, 2^101543214989 is an apocalyptic number.

It is an amenable number.

101543214989 is a deficient number, since it is larger than the sum of its proper divisors (1).

101543214989 is an equidigital number, since it uses as much as digits as its factorization.

101543214989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 101543214989 in words is "one hundred one billion, five hundred forty-three million, two hundred fourteen thousand, nine hundred eighty-nine".