121136430 has 16 divisors (see below), whose sum is σ = 290727504. Its totient is φ = 32303040.

The previous prime is 121136399. The next prime is 121136453. The reversal of 121136430 is 34631121.

It is a junction number, because it is equal to n+sod(n) for n = 121136397 and 121136406.

It is a congruent number.

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, 2018911 + ... + 2018970.

It is an arithmetic number, because the mean of its divisors is an integer number (18170469).

Almost surely, 2^121136430 is an apocalyptic number.

121136430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121136430 is an abundant number, since it is smaller than the sum of its proper divisors (169591074).

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

121136430 is a wasteful number, since it uses less digits than its factorization.

121136430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037891.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 121136430 is about 11006.1996165797. The cubic root of 121136430 is about 494.7945683617.

Adding to 121136430 its reverse (34631121), we get a palindrome (155767551).

The spelling of 121136430 in words is "one hundred twenty-one million, one hundred thirty-six thousand, four hundred thirty".