101042540146 has 4 divisors (see below), whose sum is σ = 151563810222. Its totient is φ = 50521270072.

The previous prime is 101042540143. The next prime is 101042540147. The reversal of 101042540146 is 641045240101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641045240101 = 7 ⋅91577891443.

It can be written as a sum of positive squares in only one way, i.e., 84852777025 + 16189763121 = 291295^2 + 127239^2 .

It is not an unprimeable number, because it can be changed into a prime (101042540141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25260635035 + ... + 25260635038.

Almost surely, 2^101042540146 is an apocalyptic number.

101042540146 is a deficient number, since it is larger than the sum of its proper divisors (50521270076).

101042540146 is an equidigital number, since it uses as much as digits as its factorization.

101042540146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50521270075.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 101042540146 its reverse (641045240101), we get a palindrome (742087780247).

The spelling of 101042540146 in words is "one hundred one billion, forty-two million, five hundred forty thousand, one hundred forty-six".