101231402321 has 4 divisors (see below), whose sum is σ = 115693031232. Its totient is φ = 86769773412.

The previous prime is 101231402309. The next prime is 101231402333. The reversal of 101231402321 is 123204132101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (101231402309) and next prime (101231402333).

It is a de Polignac number, because none of the positive numbers 2^k-101231402321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101231402293 and 101231402302.

It is not an unprimeable number, because it can be changed into a prime (101231402021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7230814445 + ... + 7230814458.

It is an arithmetic number, because the mean of its divisors is an integer number (28923257808).

Almost surely, 2^101231402321 is an apocalyptic number.

It is an amenable number.

101231402321 is a deficient number, since it is larger than the sum of its proper divisors (14461628911).

101231402321 is an equidigital number, since it uses as much as digits as its factorization.

101231402321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14461628910.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 101231402321 its reverse (123204132101), we get a palindrome (224435534422).

The spelling of 101231402321 in words is "one hundred one billion, two hundred thirty-one million, four hundred two thousand, three hundred twenty-one".