121401455411 has 16 divisors (see below), whose sum is σ = 132708757248. Its totient is φ = 110558131200.

The previous prime is 121401455401. The next prime is 121401455431. The reversal of 121401455411 is 114554104121.

It is a cyclic number.

It is not a de Polignac number, because 121401455411 - 2⁶ = 121401455347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121401455401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4958981 + ... + 4983401.

It is an arithmetic number, because the mean of its divisors is an integer number (8294297328).

Almost surely, 2^121401455411 is an apocalyptic number.

121401455411 is a deficient number, since it is larger than the sum of its proper divisors (11307301837).

121401455411 is a wasteful number, since it uses less digits than its factorization.

121401455411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33902.

The product of its (nonzero) digits is 3200, while the sum is 29.

Adding to 121401455411 its reverse (114554104121), we get a palindrome (235955559532).

The spelling of 121401455411 in words is "one hundred twenty-one billion, four hundred one million, four hundred fifty-five thousand, four hundred eleven".