121015434 has 16 divisors (see below), whose sum is σ = 250377120. Its totient is φ = 38947440.

The previous prime is 121015369. The next prime is 121015441. The reversal of 121015434 is 434510121.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121015434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347572 + ... + 347919.

It is an arithmetic number, because the mean of its divisors is an integer number (15648570).

Almost surely, 2^121015434 is an apocalyptic number.

121015434 is an abundant number, since it is smaller than the sum of its proper divisors (129361686).

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

121015434 is a wasteful number, since it uses less digits than its factorization.

121015434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695525.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 121015434 is about 11000.7015230848. The cubic root of 121015434 is about 494.6297731591.

Adding to 121015434 its reverse (434510121), we get a palindrome (555525555).

The spelling of 121015434 in words is "one hundred twenty-one million, fifteen thousand, four hundred thirty-four".