101442031 has 16 divisors (see below), whose sum is σ = 106444800. Its totient is φ = 96596640.

The previous prime is 101442023. The next prime is 101442037. The reversal of 101442031 is 130244101.

It is a cyclic number.

It is not a de Polignac number, because 101442031 - 2³ = 101442023 is a prime.

It is a super-2 number, since 2×101442031² = 20580971306809922, 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 = 101441996 and 101442014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101442037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454786 + ... + 455008.

It is an arithmetic number, because the mean of its divisors is an integer number (6652800).

Almost surely, 2^101442031 is an apocalyptic number.

101442031 is a deficient number, since it is larger than the sum of its proper divisors (5002769).

101442031 is a wasteful number, since it uses less digits than its factorization.

101442031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 101442031 is about 10071.8434757496. The cubic root of 101442031 is about 466.3793490474.

Adding to 101442031 its reverse (130244101), we get a palindrome (231686132).

The spelling of 101442031 in words is "one hundred one million, four hundred forty-two thousand, thirty-one".