1141558472421 has 16 divisors (see below), whose sum is σ = 1691538422400. Its totient is φ = 760885673184.

The previous prime is 1141558472413. The next prime is 1141558472429. The reversal of 1141558472421 is 1242748551411.

1141558472421 is a `hidden beast` number, since 1 + 1 + 4 + 1 + 558 + 4 + 72 + 4 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (1141558472413) and next prime (1141558472429).

It is not a de Polignac number, because 1141558472421 - 2³ = 1141558472413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141558472429) 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, 4121976 + ... + 4390193.

It is an arithmetic number, because the mean of its divisors is an integer number (105721151400).

Almost surely, 2^{1141558472421} is an apocalyptic number.

It is an amenable number.

1141558472421 is a deficient number, since it is larger than the sum of its proper divisors (549979949979).

1141558472421 is an equidigital number, since it uses as much as digits as its factorization.

1141558472421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8517145 (or 8517139 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The spelling of 1141558472421 in words is "one trillion, one hundred forty-one billion, five hundred fifty-eight million, four hundred seventy-two thousand, four hundred twenty-one".