121213424234 has 16 divisors (see below), whose sum is σ = 207810534336. Its totient is φ = 51944587200.

The previous prime is 121213424207. The next prime is 121213424257. The reversal of 121213424234 is 432424312121.

It is a super-3 number, since 3×121213424234³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121213424197 and 121213424206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144287 + ... + 513074.

It is an arithmetic number, because the mean of its divisors is an integer number (12988158396).

Almost surely, 2^121213424234 is an apocalyptic number.

121213424234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121213424234 is a deficient number, since it is larger than the sum of its proper divisors (86597110102).

121213424234 is a wasteful number, since it uses less digits than its factorization.

121213424234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670541.

The product of its digits is 9216, while the sum is 29.

Adding to 121213424234 its reverse (432424312121), we get a palindrome (553637736355).

The spelling of 121213424234 in words is "one hundred twenty-one billion, two hundred thirteen million, four hundred twenty-four thousand, two hundred thirty-four".