121331034055 has 32 divisors (see below), whose sum is σ = 181967892480. Its totient is φ = 75449905920.

The previous prime is 121331034037. The next prime is 121331034109. The reversal of 121331034055 is 550430133121.

It is a happy number.

It is not a de Polignac number, because 121331034055 - 2⁵ = 121331034023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227799 + ... + 542728.

It is an arithmetic number, because the mean of its divisors is an integer number (5686496640).

Almost surely, 2^121331034055 is an apocalyptic number.

121331034055 is a deficient number, since it is larger than the sum of its proper divisors (60636858425).

121331034055 is a wasteful number, since it uses less digits than its factorization.

121331034055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770959.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 121331034055 its reverse (550430133121), we get a palindrome (671761167176).

The spelling of 121331034055 in words is "one hundred twenty-one billion, three hundred thirty-one million, thirty-four thousand, fifty-five".