121231310301223 has 4 divisors (see below), whose sum is σ = 125411700311640. Its totient is φ = 117050920290808.

The previous prime is 121231310301197. The next prime is 121231310301271. The reversal of 121231310301223 is 322103013132121.

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 121231310301223 - 2¹³ = 121231310293031 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 (121231310301823) 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, 2090195005165 + ... + 2090195005222.

It is an arithmetic number, because the mean of its divisors is an integer number (31352925077910).

Almost surely, 2^{121231310301223} is an apocalyptic number.

121231310301223 is a deficient number, since it is larger than the sum of its proper divisors (4180390010417).

121231310301223 is an equidigital number, since it uses as much as digits as its factorization.

121231310301223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180390010416.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121231310301223 its reverse (322103013132121), we get a palindrome (443334323433344).

The spelling of 121231310301223 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, three hundred ten million, three hundred one thousand, two hundred twenty-three".