1021427332347 has 16 divisors (see below), whose sum is σ = 1365234936480. Its totient is φ = 679287324672.

The previous prime is 1021427332271. The next prime is 1021427332361. The reversal of 1021427332347 is 7432337241201.

It is not a de Polignac number, because 1021427332347 - 2¹¹ = 1021427330299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021427332747) 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, 2229583 + ... + 2648375.

It is an arithmetic number, because the mean of its divisors is an integer number (85327183530).

Almost surely, 2^{1021427332347} is an apocalyptic number.

1021427332347 is a deficient number, since it is larger than the sum of its proper divisors (343807604133).

1021427332347 is a wasteful number, since it uses less digits than its factorization.

1021427332347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420782.

The product of its (nonzero) digits is 169344, while the sum is 39.

The spelling of 1021427332347 in words is "one trillion, twenty-one billion, four hundred twenty-seven million, three hundred thirty-two thousand, three hundred forty-seven".