121203331213103 has 4 divisors (see below), whose sum is σ = 122380062584208. Its totient is φ = 120026599842000.

The previous prime is 121203331213091. The next prime is 121203331213169. The reversal of 121203331213103 is 301312133302121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121203331213103 - 2⁴ = 121203331213087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121203331213603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588365685398 + ... + 588365685603.

It is an arithmetic number, because the mean of its divisors is an integer number (30595015646052).

Almost surely, 2^{121203331213103} is an apocalyptic number.

121203331213103 is a deficient number, since it is larger than the sum of its proper divisors (1176731371105).

121203331213103 is a wasteful number, since it uses less digits than its factorization.

121203331213103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176731371104.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 121203331213103 its reverse (301312133302121), we get a palindrome (422515464515224).

The spelling of 121203331213103 in words is "one hundred twenty-one trillion, two hundred three billion, three hundred thirty-one million, two hundred thirteen thousand, one hundred three".