103042543644 has 54 divisors (see below), whose sum is σ = 267698735304. Its totient is φ = 33419187360.

The previous prime is 103042543631. The next prime is 103042543711. The reversal of 103042543644 is 446345240301.

103042543644 is a `hidden beast` number, since 1 + 0 + 3 + 0 + 4 + 2 + 5 + 4 + 3 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 103042543599 and 103042543608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 996112 + ... + 1094679.

Almost surely, 2^103042543644 is an apocalyptic number.

It is an amenable number.

103042543644 is an abundant number, since it is smaller than the sum of its proper divisors (164656191660).

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

103042543644 is a wasteful number, since it uses less digits than its factorization.

103042543644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090875 (or 2090833 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 103042543644 its reverse (446345240301), we get a palindrome (549387783945).

The spelling of 103042543644 in words is "one hundred three billion, forty-two million, five hundred forty-three thousand, six hundred forty-four".