1013430440021 has 16 divisors (see below), whose sum is σ = 1065725294400. Its totient is φ = 962867313408.

The previous prime is 1013430440003. The next prime is 1013430440093. The reversal of 1013430440021 is 1200440343101.

It is a cyclic number.

It is not a de Polignac number, because 1013430440021 - 2¹⁰ = 1013430438997 is a prime.

It is a super-2 number, since 2×1013430440021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013430449021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2209076 + ... + 2628093.

It is an arithmetic number, because the mean of its divisors is an integer number (66607830900).

Almost surely, 2^{1013430440021} is an apocalyptic number.

It is an amenable number.

1013430440021 is a deficient number, since it is larger than the sum of its proper divisors (52294854379).

1013430440021 is an equidigital number, since it uses as much as digits as its factorization.

1013430440021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4837348.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1013430440021 its reverse (1200440343101), we get a palindrome (2213870783122).

The spelling of 1013430440021 in words is "one trillion, thirteen billion, four hundred thirty million, four hundred forty thousand, twenty-one".