121430124 has 24 divisors (see below), whose sum is σ = 314819120. Its totient is φ = 40476672.

The previous prime is 121430119. The next prime is 121430143. The reversal of 121430124 is 421034121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121430097 and 121430106.

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, 562069 + ... + 562284.

Almost surely, 2^121430124 is an apocalyptic number.

It is an amenable number.

121430124 is an abundant number, since it is smaller than the sum of its proper divisors (193388996).

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

121430124 is a wasteful number, since it uses less digits than its factorization.

121430124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124366 (or 1124358 counting only the distinct ones).

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

The square root of 121430124 is about 11019.5337469423. The cubic root of 121430124 is about 495.1941203739.

Adding to 121430124 its reverse (421034121), we get a palindrome (542464245).

The spelling of 121430124 in words is "one hundred twenty-one million, four hundred thirty thousand, one hundred twenty-four".