21142034101 has 8 divisors (see below), whose sum is σ = 21350947904. Its totient is φ = 20933190720.

The previous prime is 21142034029. The next prime is 21142034107. The reversal of 21142034101 is 10143024112.

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 21142034101 - 2¹⁹ = 21141509813 is a prime.

It is a super-3 number, since 3×21142034101³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21142034107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749485 + ... + 777181.

It is an arithmetic number, because the mean of its divisors is an integer number (2668868488).

Almost surely, 2^21142034101 is an apocalyptic number.

It is an amenable number.

21142034101 is a deficient number, since it is larger than the sum of its proper divisors (208913803).

21142034101 is a wasteful number, since it uses less digits than its factorization.

21142034101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35211.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21142034101 its reverse (10143024112), we get a palindrome (31285058213).

The spelling of 21142034101 in words is "twenty-one billion, one hundred forty-two million, thirty-four thousand, one hundred one".