1213041201440 has 96 divisors (see below), whose sum is σ = 3036620845440. Its totient is φ = 456634368000.

The previous prime is 1213041201419. The next prime is 1213041201451. The reversal of 1213041201440 is 441021403121.

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 15 ways as a sum of consecutive naturals, for example, 862241 + ... + 1780320.

It is an arithmetic number, because the mean of its divisors is an integer number (31631467140).

Almost surely, 2^{1213041201440} is an apocalyptic number.

1213041201440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213041201440 is an abundant number, since it is smaller than the sum of its proper divisors (1823579644000).

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

1213041201440 is a wasteful number, since it uses less digits than its factorization.

1213041201440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642746 (or 2642738 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1213041201440 its reverse (441021403121), we get a palindrome (1654062604561).

The spelling of 1213041201440 in words is "one trillion, two hundred thirteen billion, forty-one million, two hundred one thousand, four hundred forty".