100142125105 has 8 divisors (see below), whose sum is σ = 131095145664. Its totient is φ = 72830636400.

The previous prime is 100142125103. The next prime is 100142125117. The reversal of 100142125105 is 501521241001.

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

It is not a de Polignac number, because 100142125105 - 2¹ = 100142125103 is a prime.

It is a super-2 number, since 2×100142125105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100142125103) 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, 910382901 + ... + 910383010.

It is an arithmetic number, because the mean of its divisors is an integer number (16386893208).

Almost surely, 2^100142125105 is an apocalyptic number.

It is an amenable number.

100142125105 is a deficient number, since it is larger than the sum of its proper divisors (30953020559).

100142125105 is a wasteful number, since it uses less digits than its factorization.

100142125105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820765927.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 100142125105 its reverse (501521241001), we get a palindrome (601663366106).

The spelling of 100142125105 in words is "one hundred billion, one hundred forty-two million, one hundred twenty-five thousand, one hundred five".