101431221321 has 8 divisors (see below), whose sum is σ = 137146440384. Its totient is φ = 66668408240.

The previous prime is 101431221313. The next prime is 101431221343. The reversal of 101431221321 is 123122134101.

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 101431221321 - 2³ = 101431221313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101431221421) 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, 238101246 + ... + 238101671.

It is an arithmetic number, because the mean of its divisors is an integer number (17143305048).

Almost surely, 2^101431221321 is an apocalyptic number.

It is an amenable number.

101431221321 is a deficient number, since it is larger than the sum of its proper divisors (35715219063).

101431221321 is an equidigital number, since it uses as much as digits as its factorization.

101431221321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476202991.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 101431221321 its reverse (123122134101), we get a palindrome (224553355422).

The spelling of 101431221321 in words is "one hundred one billion, four hundred thirty-one million, two hundred twenty-one thousand, three hundred twenty-one".