1013443432123 has 4 divisors (see below), whose sum is σ = 1032565006368. Its totient is φ = 994321857880.

The previous prime is 1013443432121. The next prime is 1013443432153. The reversal of 1013443432123 is 3212343443101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1013443432123 - 2¹ = 1013443432121 is a prime.

It is a super-2 number, since 2×1013443432123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013443432121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9560787043 + ... + 9560787148.

It is an arithmetic number, because the mean of its divisors is an integer number (258141251592).

Almost surely, 2^{1013443432123} is an apocalyptic number.

1013443432123 is a deficient number, since it is larger than the sum of its proper divisors (19121574245).

1013443432123 is an equidigital number, since it uses as much as digits as its factorization.

1013443432123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19121574244.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 1013443432123 its reverse (3212343443101), we get a palindrome (4225786875224).

The spelling of 1013443432123 in words is "one trillion, thirteen billion, four hundred forty-three million, four hundred thirty-two thousand, one hundred twenty-three".