1011541826421 has 48 divisors (see below), whose sum is σ = 1698361691520. Its totient is φ = 568155824640.

The previous prime is 1011541826401. The next prime is 1011541826423. The reversal of 1011541826421 is 1246281451101.

1011541826421 is a `hidden beast` number, since 1 + 0 + 1 + 1 + 5 + 4 + 1 + 8 + 2 + 642 + 1 = 666.

It is not a de Polignac number, because 1011541826421 - 2¹³ = 1011541818229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011541826423) 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 47 ways as a sum of consecutive naturals, for example, 47719401 + ... + 47740593.

It is an arithmetic number, because the mean of its divisors is an integer number (35382535240).

Almost surely, 2^{1011541826421} is an apocalyptic number.

It is an amenable number.

1011541826421 is a deficient number, since it is larger than the sum of its proper divisors (686819865099).

1011541826421 is a wasteful number, since it uses less digits than its factorization.

1011541826421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34106 (or 34103 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The spelling of 1011541826421 in words is "one trillion, eleven billion, five hundred forty-one million, eight hundred twenty-six thousand, four hundred twenty-one".