102121001238 has 8 divisors (see below), whose sum is σ = 204242002488. Its totient is φ = 34040333744.

The previous prime is 102121001237. The next prime is 102121001239. The reversal of 102121001238 is 832100121201.

It is an interprime number because it is at equal distance from previous prime (102121001237) and next prime (102121001239).

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

102121001238 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121001237) 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 3 ways as a sum of consecutive naturals, for example, 8510083431 + ... + 8510083442.

It is an arithmetic number, because the mean of its divisors is an integer number (25530250311).

Almost surely, 2^102121001238 is an apocalyptic number.

102121001238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102121001238 is a wasteful number, since it uses less digits than its factorization.

102121001238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17020166878.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 102121001238 its reverse (832100121201), we get a palindrome (934221122439).

The spelling of 102121001238 in words is "one hundred two billion, one hundred twenty-one million, one thousand, two hundred thirty-eight".