101143131449 has 2 divisors, whose sum is σ = 101143131450. Its totient is φ = 101143131448.

The previous prime is 101143131413. The next prime is 101143131461. The reversal of 101143131449 is 944131341101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51728953600 + 49414177849 = 227440^2 + 222293^2 .

It is a cyclic number.

It is not a de Polignac number, because 101143131449 - 2¹² = 101143127353 is a prime.

It is not a weakly prime, because it can be changed into another prime (101143131409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50571565724 + 50571565725.

It is an arithmetic number, because the mean of its divisors is an integer number (50571565725).

Almost surely, 2^101143131449 is an apocalyptic number.

It is an amenable number.

101143131449 is a deficient number, since it is larger than the sum of its proper divisors (1).

101143131449 is an equidigital number, since it uses as much as digits as its factorization.

101143131449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 101143131449 in words is "one hundred one billion, one hundred forty-three million, one hundred thirty-one thousand, four hundred forty-nine".