10542203989 has 2 divisors, whose sum is σ = 10542203990. Its totient is φ = 10542203988.

The previous prime is 10542203981. The next prime is 10542204061. The reversal of 10542203989 is 98930224501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9112229764 + 1429974225 = 95458^2 + 37815^2 .

It is an emirp because it is prime and its reverse (98930224501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10542203989 - 2³ = 10542203981 is a prime.

It is a super-2 number, since 2×10542203989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10542203981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5271101994 + 5271101995.

It is an arithmetic number, because the mean of its divisors is an integer number (5271101995).

Almost surely, 2^10542203989 is an apocalyptic number.

It is an amenable number.

10542203989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10542203989 is an equidigital number, since it uses as much as digits as its factorization.

10542203989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 10542203989 in words is "ten billion, five hundred forty-two million, two hundred three thousand, nine hundred eighty-nine".