121400340133323 has 16 divisors (see below), whose sum is σ = 167455150809120. Its totient is φ = 78139758299904.

The previous prime is 121400340133309. The next prime is 121400340133339. The reversal of 121400340133323 is 323331043004121.

It is not a de Polignac number, because 121400340133323 - 2²⁰ = 121400339084747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121400340183323) 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, 24402436 + ... + 28953057.

It is an arithmetic number, because the mean of its divisors is an integer number (10465946925570).

Almost surely, 2^{121400340133323} is an apocalyptic number.

121400340133323 is a deficient number, since it is larger than the sum of its proper divisors (46054810675797).

121400340133323 is a wasteful number, since it uses less digits than its factorization.

121400340133323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53381678.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 121400340133323 its reverse (323331043004121), we get a palindrome (444731383137444).

The spelling of 121400340133323 in words is "one hundred twenty-one trillion, four hundred billion, three hundred forty million, one hundred thirty-three thousand, three hundred twenty-three".