121421403230 has 16 divisors (see below), whose sum is σ = 230061606480. Its totient is φ = 46012321152.

The previous prime is 121421403193. The next prime is 121421403241. The reversal of 121421403230 is 32304124121.

It is a junction number, because it is equal to n+sod(n) for n = 121421403196 and 121421403205.

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, 319529819 + ... + 319530198.

It is an arithmetic number, because the mean of its divisors is an integer number (14378850405).

Almost surely, 2^121421403230 is an apocalyptic number.

121421403230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121421403230 is a deficient number, since it is larger than the sum of its proper divisors (108640203250).

121421403230 is a wasteful number, since it uses less digits than its factorization.

121421403230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639060043.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 121421403230 its reverse (32304124121), we get a palindrome (153725527351).

The spelling of 121421403230 in words is "one hundred twenty-one billion, four hundred twenty-one million, four hundred three thousand, two hundred thirty".