102121001005 has 8 divisors (see below), whose sum is σ = 122613787872. Its totient is φ = 81651076368.

The previous prime is 102121000963. The next prime is 102121001011. The reversal of 102121001005 is 500100121201.

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 102121001005 - 2⁹ = 102121000493 is a prime.

It is a super-2 number, since 2×102121001005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5705727 + ... + 5723596.

It is an arithmetic number, because the mean of its divisors is an integer number (15326723484).

Almost surely, 2^102121001005 is an apocalyptic number.

It is an amenable number.

102121001005 is a deficient number, since it is larger than the sum of its proper divisors (20492786867).

102121001005 is a wasteful number, since it uses less digits than its factorization.

102121001005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11431115.

The product of its (nonzero) digits is 20, while the sum is 13.

Adding to 102121001005 its reverse (500100121201), we get a palindrome (602221122206).

The spelling of 102121001005 in words is "one hundred two billion, one hundred twenty-one million, one thousand, five".