1013545421421 has 16 divisors (see below), whose sum is σ = 1462966901760. Its totient is φ = 620454703680.

The previous prime is 1013545421347. The next prime is 1013545421429. The reversal of 1013545421421 is 1241245453101.

It is not a de Polignac number, because 1013545421421 - 2¹⁰ = 1013545420397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013545421429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68024866 + ... + 68039763.

It is an arithmetic number, because the mean of its divisors is an integer number (91435431360).

Almost surely, 2^{1013545421421} is an apocalyptic number.

It is an amenable number.

1013545421421 is a deficient number, since it is larger than the sum of its proper divisors (449421480339).

1013545421421 is a wasteful number, since it uses less digits than its factorization.

1013545421421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136064836.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 1013545421421 in words is "one trillion, thirteen billion, five hundred forty-five million, four hundred twenty-one thousand, four hundred twenty-one".