121412430 has 48 divisors (see below), whose sum is σ = 325862784. Its totient is φ = 31331520.

The previous prime is 121412411. The next prime is 121412437. The reversal of 121412430 is 34214121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121412437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18969 + ... + 24548.

It is an arithmetic number, because the mean of its divisors is an integer number (6788808).

Almost surely, 2^121412430 is an apocalyptic number.

121412430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121412430 is an abundant number, since it is smaller than the sum of its proper divisors (204450354).

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

121412430 is a wasteful number, since it uses less digits than its factorization.

121412430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43561 (or 43558 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 121412430 is about 11018.7308706584. The cubic root of 121412430 is about 495.1700670608.

Adding to 121412430 its reverse (34214121), we get a palindrome (155626551).

The spelling of 121412430 in words is "one hundred twenty-one million, four hundred twelve thousand, four hundred thirty".