11143498061 has 2 divisors, whose sum is σ = 11143498062. Its totient is φ = 11143498060.

The previous prime is 11143498007. The next prime is 11143498063. The reversal of 11143498061 is 16089434111.

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., 9275616100 + 1867881961 = 96310^2 + 43219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11143498061 is a prime.

Together with 11143498063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11143498063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571749030 + 5571749031.

It is an arithmetic number, because the mean of its divisors is an integer number (5571749031).

Almost surely, 2^11143498061 is an apocalyptic number.

It is an amenable number.

11143498061 is a deficient number, since it is larger than the sum of its proper divisors (1).

11143498061 is an equidigital number, since it uses as much as digits as its factorization.

11143498061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 11143498061 in words is "eleven billion, one hundred forty-three million, four hundred ninety-eight thousand, sixty-one".