121400123233 has 2 divisors, whose sum is σ = 121400123234. Its totient is φ = 121400123232.

The previous prime is 121400123209. The next prime is 121400123293. The reversal of 121400123233 is 332321004121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92922548224 + 28477575009 = 304832^2 + 168753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121400123233 is a prime.

It is not a weakly prime, because it can be changed into another prime (121400123293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60700061616 + 60700061617.

It is an arithmetic number, because the mean of its divisors is an integer number (60700061617).

Almost surely, 2^121400123233 is an apocalyptic number.

It is an amenable number.

121400123233 is a deficient number, since it is larger than the sum of its proper divisors (1).

121400123233 is an equidigital number, since it uses as much as digits as its factorization.

121400123233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121400123233 its reverse (332321004121), we get a palindrome (453721127354).

The spelling of 121400123233 in words is "one hundred twenty-one billion, four hundred million, one hundred twenty-three thousand, two hundred thirty-three".