121442442430 has 16 divisors (see below), whose sum is σ = 219070583424. Its totient is φ = 48471602080.

The previous prime is 121442442427. The next prime is 121442442487. The reversal of 121442442430 is 34244244121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121442442392 and 121442442401.

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, 13167022 + ... + 13176241.

It is an arithmetic number, because the mean of its divisors is an integer number (13691911464).

Almost surely, 2^121442442430 is an apocalyptic number.

121442442430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121442442430 is a deficient number, since it is larger than the sum of its proper divisors (97628140994).

121442442430 is a wasteful number, since it uses less digits than its factorization.

121442442430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26343731.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 121442442430 its reverse (34244244121), we get a palindrome (155686686551).

The spelling of 121442442430 in words is "one hundred twenty-one billion, four hundred forty-two million, four hundred forty-two thousand, four hundred thirty".