1201010243440 has 80 divisors (see below), whose sum is σ = 3194954938368. Its totient is φ = 411297631488.

The previous prime is 1201010243423. The next prime is 1201010243471. The reversal of 1201010243440 is 443420101021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759282 + ... + 1725841.

Almost surely, 2^{1201010243440} is an apocalyptic number.

1201010243440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201010243440 is an abundant number, since it is smaller than the sum of its proper divisors (1993944694928).

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

1201010243440 is a wasteful number, since it uses less digits than its factorization.

1201010243440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486006 (or 2486000 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1201010243440 its reverse (443420101021), we get a palindrome (1644430344461).

The spelling of 1201010243440 in words is "one trillion, two hundred one billion, ten million, two hundred forty-three thousand, four hundred forty".