121321300223123 has 32 divisors (see below), whose sum is σ = 166865933025792. Its totient is φ = 85135680057600.

The previous prime is 121321300223111. The next prime is 121321300223131. The reversal of 121321300223123 is 321322003123121.

It is a cyclic number.

It is not a de Polignac number, because 121321300223123 - 2³² = 121317005255827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121321300223092 and 121321300223101.

It is not an unprimeable number, because it can be changed into a prime (121321300223923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1478008961 + ... + 1478091042.

It is an arithmetic number, because the mean of its divisors is an integer number (5214560407056).

Almost surely, 2^{121321300223123} is an apocalyptic number.

121321300223123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121321300223123 is a deficient number, since it is larger than the sum of its proper divisors (45544632802669).

121321300223123 is a wasteful number, since it uses less digits than its factorization.

121321300223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956100075.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 121321300223123 its reverse (321322003123121), we get a palindrome (442643303346244).

The spelling of 121321300223123 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, three hundred million, two hundred twenty-three thousand, one hundred twenty-three".