121311331223101 has 16 divisors (see below), whose sum is σ = 133593884040960. Its totient is φ = 109737833253120.

The previous prime is 121311331223099. The next prime is 121311331223129. The reversal of 121311331223101 is 101322133113121.

It is a cyclic number.

It is not a de Polignac number, because 121311331223101 - 2¹ = 121311331223099 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 (121311331223701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1656633576 + ... + 1656706801.

It is an arithmetic number, because the mean of its divisors is an integer number (8349617752560).

Almost surely, 2^{121311331223101} is an apocalyptic number.

It is an amenable number.

121311331223101 is a deficient number, since it is larger than the sum of its proper divisors (12282552817859).

121311331223101 is a wasteful number, since it uses less digits than its factorization.

121311331223101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313340484.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 121311331223101 its reverse (101322133113121), we get a palindrome (222633464336222).

The spelling of 121311331223101 in words is "one hundred twenty-one trillion, three hundred eleven billion, three hundred thirty-one million, two hundred twenty-three thousand, one hundred one".