121443141430 has 48 divisors (see below), whose sum is σ = 236764550880. Its totient is φ = 44829517824.

The previous prime is 121443141403. The next prime is 121443141473. The reversal of 121443141430 is 34141344121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10714006 + ... + 10725334.

It is an arithmetic number, because the mean of its divisors is an integer number (4932594810).

Almost surely, 2^121443141430 is an apocalyptic number.

121443141430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121443141430 is a deficient number, since it is larger than the sum of its proper divisors (115321409450).

121443141430 is a wasteful number, since it uses less digits than its factorization.

121443141430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17705 (or 17692 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 121443141430 its reverse (34141344121), we get a palindrome (155584485551).

The spelling of 121443141430 in words is "one hundred twenty-one billion, four hundred forty-three million, one hundred forty-one thousand, four hundred thirty".