1331240121234 has 12 divisors (see below), whose sum is σ = 2884353596046. Its totient is φ = 443746707072.

The previous prime is 1331240121179. The next prime is 1331240121271. The reversal of 1331240121234 is 4321210421331.

1331240121234 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 2 + 401 + 21 + 234 = 666.

It can be written as a sum of positive squares in only one way, i.e., 690835257225 + 640404864009 = 831165^2 + 800253^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1331240121198 and 1331240121207.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 36978892239 + ... + 36978892274.

Almost surely, 2^{1331240121234} is an apocalyptic number.

1331240121234 is an abundant number, since it is smaller than the sum of its proper divisors (1553113474812).

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

1331240121234 is a wasteful number, since it uses less digits than its factorization.

1331240121234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73957784521 (or 73957784518 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1331240121234 its reverse (4321210421331), we get a palindrome (5652450542565).

The spelling of 1331240121234 in words is "one trillion, three hundred thirty-one billion, two hundred forty million, one hundred twenty-one thousand, two hundred thirty-four".