121400121233 has 16 divisors (see below), whose sum is σ = 129688128000. Its totient is φ = 113388522240.

The previous prime is 121400121203. The next prime is 121400121253. The reversal of 121400121233 is 332121004121.

It is a cyclic number.

It is not a de Polignac number, because 121400121233 - 2¹⁴ = 121400104849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121400121203) 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, 2401385 + ... + 2451417.

It is an arithmetic number, because the mean of its divisors is an integer number (8105508000).

Almost surely, 2^121400121233 is an apocalyptic number.

It is an amenable number.

121400121233 is a deficient number, since it is larger than the sum of its proper divisors (8288006767).

121400121233 is a wasteful number, since it uses less digits than its factorization.

121400121233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52792.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121400121233 its reverse (332121004121), we get a palindrome (453521125354).

The spelling of 121400121233 in words is "one hundred twenty-one billion, four hundred million, one hundred twenty-one thousand, two hundred thirty-three".