103203203210121 has 8 divisors (see below), whose sum is σ = 157262023939264. Its totient is φ = 58973258977200.

The previous prime is 103203203210119. The next prime is 103203203210141. The reversal of 103203203210121 is 121012302302301.

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

It is not a de Polignac number, because 103203203210121 - 2¹ = 103203203210119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 4914438248101 = 103203203210121 / (1 + 0 + 3 + 2 + 0 + 3 + 2 + 0 + 3 + 2 + 1 + 0 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103203203210111) 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, 2457219124030 + ... + 2457219124071.

It is an arithmetic number, because the mean of its divisors is an integer number (19657752992408).

Almost surely, 2^{103203203210121} is an apocalyptic number.

It is an amenable number.

103203203210121 is a deficient number, since it is larger than the sum of its proper divisors (54058820729143).

103203203210121 is an equidigital number, since it uses as much as digits as its factorization.

103203203210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4914438248111.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 103203203210121 its reverse (121012302302301), we get a palindrome (224215505512422).

The spelling of 103203203210121 in words is "one hundred three trillion, two hundred three billion, two hundred three million, two hundred ten thousand, one hundred twenty-one".