101345042 has 4 divisors (see below), whose sum is σ = 152017566. Its totient is φ = 50672520.

The previous prime is 101345029. The next prime is 101345059. The reversal of 101345042 is 240543101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240543101 = 71 ⋅3387931.

It can be written as a sum of positive squares in only one way, i.e., 61136761 + 40208281 = 7819^2 + 6341^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25336259 + ... + 25336262.

Almost surely, 2^101345042 is an apocalyptic number.

101345042 is a deficient number, since it is larger than the sum of its proper divisors (50672524).

101345042 is an equidigital number, since it uses as much as digits as its factorization.

101345042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50672523.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 101345042 is about 10067.0274659405. The cubic root of 101345042 is about 466.2306661333.

Adding to 101345042 its reverse (240543101), we get a palindrome (341888143).

The spelling of 101345042 in words is "one hundred one million, three hundred forty-five thousand, forty-two".