84310147021 has 32 divisors (see below), whose sum is σ = 97919280000. Its totient is φ = 72051259392.

The previous prime is 84310147013. The next prime is 84310147039. The reversal of 84310147021 is 12074101348.

It is not a de Polignac number, because 84310147021 - 2³ = 84310147013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84310141021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1250430 + ... + 1316128.

It is an arithmetic number, because the mean of its divisors is an integer number (3059977500).

Almost surely, 2^84310147021 is an apocalyptic number.

It is an amenable number.

84310147021 is a deficient number, since it is larger than the sum of its proper divisors (13609132979).

84310147021 is a wasteful number, since it uses less digits than its factorization.

84310147021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65901.

The product of its (nonzero) digits is 5376, while the sum is 31.

Adding to 84310147021 its reverse (12074101348), we get a palindrome (96384248369).

The spelling of 84310147021 in words is "eighty-four billion, three hundred ten million, one hundred forty-seven thousand, twenty-one".