107281621321 has 8 divisors (see below), whose sum is σ = 124334434944. Its totient is φ = 90660524640.

The previous prime is 107281621273. The next prime is 107281621357. The reversal of 107281621321 is 123126182701.

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

It is not a de Polignac number, because 107281621321 - 2¹⁵ = 107281588553 is a prime.

It is a super-3 number, since 3×107281621321³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107281621921) 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, 107928700 + ... + 107929693.

It is an arithmetic number, because the mean of its divisors is an integer number (15541804368).

Almost surely, 2^107281621321 is an apocalyptic number.

It is an amenable number.

107281621321 is a deficient number, since it is larger than the sum of its proper divisors (17052813623).

107281621321 is an equidigital number, since it uses as much as digits as its factorization.

107281621321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215858471.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 107281621321 in words is "one hundred seven billion, two hundred eighty-one million, six hundred twenty-one thousand, three hundred twenty-one".