1011620421144 has 24 divisors (see below), whose sum is σ = 2739805307460. Its totient is φ = 337206807024.

The previous prime is 1011620421143. The next prime is 1011620421151. The reversal of 1011620421144 is 4411240261101.

It is a happy number.

1011620421144 is a `hidden beast` number, since 1 + 0 + 1 + 1 + 620 + 4 + 21 + 14 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011620421143) 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 5 ways as a sum of consecutive naturals, for example, 7025141742 + ... + 7025141885.

Almost surely, 2^{1011620421144} is an apocalyptic number.

It is an amenable number.

1011620421144 is an abundant number, since it is smaller than the sum of its proper divisors (1728184886316).

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

1011620421144 is a wasteful number, since it uses less digits than its factorization.

1011620421144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14050283639 (or 14050283632 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 1011620421144 its reverse (4411240261101), we get a palindrome (5422860682245).

The spelling of 1011620421144 in words is "one trillion, eleven billion, six hundred twenty million, four hundred twenty-one thousand, one hundred forty-four".