121123320001 has 16 divisors (see below), whose sum is σ = 131633344000. Its totient is φ = 111028060800.

The previous prime is 121123319981. The next prime is 121123320011. The reversal of 121123320001 is 100023321121.

It is a cyclic number.

It is not a de Polignac number, because 121123320001 - 2¹³ = 121123311809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121123320011) 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, 4432741 + ... + 4459981.

It is an arithmetic number, because the mean of its divisors is an integer number (8227084000).

Almost surely, 2^121123320001 is an apocalyptic number.

It is an amenable number.

121123320001 is a deficient number, since it is larger than the sum of its proper divisors (10510023999).

121123320001 is a wasteful number, since it uses less digits than its factorization.

121123320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34840.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121123320001 its reverse (100023321121), we get a palindrome (221146641122).

The spelling of 121123320001 in words is "one hundred twenty-one billion, one hundred twenty-three million, three hundred twenty thousand, one".