101321230431 has 4 divisors (see below), whose sum is σ = 135094973912. Its totient is φ = 67547486952.

The previous prime is 101321230379. The next prime is 101321230523. The reversal of 101321230431 is 134032123101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 101321230431 - 2⁷ = 101321230303 is a prime.

It is a super-2 number, since 2×101321230431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101321230398 and 101321230407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101321232431) 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, 16886871736 + ... + 16886871741.

It is an arithmetic number, because the mean of its divisors is an integer number (33773743478).

Almost surely, 2^101321230431 is an apocalyptic number.

101321230431 is a deficient number, since it is larger than the sum of its proper divisors (33773743481).

101321230431 is an equidigital number, since it uses as much as digits as its factorization.

101321230431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33773743480.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 101321230431 its reverse (134032123101), we get a palindrome (235353353532).

The spelling of 101321230431 in words is "one hundred one billion, three hundred twenty-one million, two hundred thirty thousand, four hundred thirty-one".