121440431410 has 16 divisors (see below), whose sum is σ = 219800474712. Its totient is φ = 48307795200.

The previous prime is 121440431389. The next prime is 121440431417. The reversal of 121440431410 is 14134044121.

It can be written as a sum of positive squares in 4 ways, for example, as 47190176289 + 74250255121 = 217233^2 + 272489^2 .

It is not an unprimeable number, because it can be changed into a prime (121440431417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33545271 + ... + 33548890.

Almost surely, 2^121440431410 is an apocalyptic number.

121440431410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121440431410 is a deficient number, since it is larger than the sum of its proper divisors (98360043302).

121440431410 is a wasteful number, since it uses less digits than its factorization.

121440431410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67094349.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 121440431410 its reverse (14134044121), we get a palindrome (135574475531).

The spelling of 121440431410 in words is "one hundred twenty-one billion, four hundred forty million, four hundred thirty-one thousand, four hundred ten".