101442331 has 4 divisors (see below), whose sum is σ = 102427312. Its totient is φ = 100457352.

The previous prime is 101442293. The next prime is 101442337. The reversal of 101442331 is 133244101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133244101 = 1447 ⋅92083.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101442331 is a prime.

It is a super-2 number, since 2×101442331² = 20581093037427122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101442299 and 101442308.

It is not an unprimeable number, because it can be changed into a prime (101442337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492336 + ... + 492541.

It is an arithmetic number, because the mean of its divisors is an integer number (25606828).

Almost surely, 2^101442331 is an apocalyptic number.

101442331 is a deficient number, since it is larger than the sum of its proper divisors (984981).

101442331 is an equidigital number, since it uses as much as digits as its factorization.

101442331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984980.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 101442331 is about 10071.8583687421. The cubic root of 101442331 is about 466.3798087966.

Adding to 101442331 its reverse (133244101), we get a palindrome (234686432).

The spelling of 101442331 in words is "one hundred one million, four hundred forty-two thousand, three hundred thirty-one".