100142031 has 8 divisors (see below), whose sum is σ = 145661184. Its totient is φ = 60692120.

The previous prime is 100142011. The next prime is 100142047. The reversal of 100142031 is 130241001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100142031 - 2⁷ = 100141903 is a prime.

It is a super-2 number, since 2×100142031² = 20056852745609922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100141998 and 100142016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100142011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1517271 + ... + 1517336.

It is an arithmetic number, because the mean of its divisors is an integer number (18207648).

Almost surely, 2^100142031 is an apocalyptic number.

100142031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100142031 is a deficient number, since it is larger than the sum of its proper divisors (45519153).

100142031 is a wasteful number, since it uses less digits than its factorization.

100142031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034621.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100142031 is about 10007.0990301885. The cubic root of 100142031 is about 464.3785292402.

Adding to 100142031 its reverse (130241001), we get a palindrome (230383032).

The spelling of 100142031 in words is "one hundred million, one hundred forty-two thousand, thirty-one".