121153111434 has 12 divisors (see below), whose sum is σ = 262498408146. Its totient is φ = 40384370472.

The previous prime is 121153111427. The next prime is 121153111447. The reversal of 121153111434 is 434111351121.

121153111434 is a `hidden beast` number, since 1 + 2 + 11 + 531 + 114 + 3 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 116142595209 + 5010516225 = 340797^2 + 70785^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121153111398 and 121153111407.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3365364189 + ... + 3365364224.

Almost surely, 2^121153111434 is an apocalyptic number.

121153111434 is an abundant number, since it is smaller than the sum of its proper divisors (141345296712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121153111434 is a wasteful number, since it uses less digits than its factorization.

121153111434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6730728421 (or 6730728418 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

Adding to 121153111434 its reverse (434111351121), we get a palindrome (555264462555).

The spelling of 121153111434 in words is "one hundred twenty-one billion, one hundred fifty-three million, one hundred eleven thousand, four hundred thirty-four".