121055510434 has 16 divisors (see below), whose sum is σ = 187936440120. Its totient is φ = 58412067840.

The previous prime is 121055510383. The next prime is 121055510437. The reversal of 121055510434 is 434015550121.

It can be written as a sum of positive squares in 4 ways, for example, as 119648885409 + 1406625025 = 345903^2 + 37505^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121055510396 and 121055510405.

It is not an unprimeable number, because it can be changed into a prime (121055510437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389247 + ... + 627394.

Almost surely, 2^121055510434 is an apocalyptic number.

121055510434 is a deficient number, since it is larger than the sum of its proper divisors (66880929686).

121055510434 is a wasteful number, since it uses less digits than its factorization.

121055510434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018725.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 121055510434 in words is "one hundred twenty-one billion, fifty-five million, five hundred ten thousand, four hundred thirty-four".