83021481421 has 8 divisors (see below), whose sum is σ = 88744065984. Its totient is φ = 77474976480.

The previous prime is 83021481409. The next prime is 83021481481. The reversal of 83021481421 is 12418412038.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83021481421 - 2¹⁹ = 83020957133 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 (83021481481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44018931 + ... + 44020816.

It is an arithmetic number, because the mean of its divisors is an integer number (11093008248).

Almost surely, 2^83021481421 is an apocalyptic number.

It is an amenable number.

83021481421 is a deficient number, since it is larger than the sum of its proper divisors (5722584563).

83021481421 is a wasteful number, since it uses less digits than its factorization.

83021481421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88039811.

The product of its (nonzero) digits is 12288, while the sum is 34.

Adding to 83021481421 its reverse (12418412038), we get a palindrome (95439893459).

The spelling of 83021481421 in words is "eighty-three billion, twenty-one million, four hundred eighty-one thousand, four hundred twenty-one".