1148838215021 has 16 divisors (see below), whose sum is σ = 1334585414400. Its totient is φ = 968500385280.

The previous prime is 1148838215011. The next prime is 1148838215033. The reversal of 1148838215021 is 1205128388411.

It is a cyclic number.

It is not a de Polignac number, because 1148838215021 - 2¹⁴ = 1148838198637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148838215011) 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, 5794685 + ... + 5989661.

It is an arithmetic number, because the mean of its divisors is an integer number (83411588400).

Almost surely, 2^{1148838215021} is an apocalyptic number.

It is an amenable number.

1148838215021 is a deficient number, since it is larger than the sum of its proper divisors (185747199379).

1148838215021 is a wasteful number, since it uses less digits than its factorization.

1148838215021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208844.

The product of its (nonzero) digits is 122880, while the sum is 44.

The spelling of 1148838215021 in words is "one trillion, one hundred forty-eight billion, eight hundred thirty-eight million, two hundred fifteen thousand, twenty-one".