121113434 has 16 divisors (see below), whose sum is σ = 198005472. Its totient is φ = 55224048.

The previous prime is 121113431. The next prime is 121113437. The reversal of 121113434 is 434311121.

It is an interprime number because it is at equal distance from previous prime (121113431) and next prime (121113437).

It is not an unprimeable number, because it can be changed into a prime (121113431) by changing a digit.

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, 25904 + ... + 30219.

It is an arithmetic number, because the mean of its divisors is an integer number (12375342).

Almost surely, 2^121113434 is an apocalyptic number.

121113434 is a deficient number, since it is larger than the sum of its proper divisors (76892038).

121113434 is a wasteful number, since it uses less digits than its factorization.

121113434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56221.

The product of its digits is 288, while the sum is 20.

The square root of 121113434 is about 11005.1548830537. The cubic root of 121113434 is about 494.7632565150.

Adding to 121113434 its reverse (434311121), we get a palindrome (555424555).

The spelling of 121113434 in words is "one hundred twenty-one million, one hundred thirteen thousand, four hundred thirty-four".