102121403 has 8 divisors (see below), whose sum is σ = 107618976. Its totient is φ = 96712000.

The previous prime is 102121391. The next prime is 102121417. The reversal of 102121403 is 304121201.

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 102121403 - 2⁴ = 102121387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102121463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19658 + ... + 24303.

It is an arithmetic number, because the mean of its divisors is an integer number (13452372).

Almost surely, 2^102121403 is an apocalyptic number.

102121403 is a deficient number, since it is larger than the sum of its proper divisors (5497573).

102121403 is a wasteful number, since it uses less digits than its factorization.

102121403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44085.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 102121403 is about 10105.5134951174. The cubic root of 102121403 is about 467.4181701648.

Adding to 102121403 its reverse (304121201), we get a palindrome (406242604).

The spelling of 102121403 in words is "one hundred two million, one hundred twenty-one thousand, four hundred three".