101431389 has 8 divisors (see below), whose sum is σ = 135551680. Its totient is φ = 67466016.

The previous prime is 101431313. The next prime is 101431397. The reversal of 101431389 is 983134101.

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

It is not a de Polignac number, because 101431389 - 2⁹ = 101430877 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 (101431289) 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, 37192 + ... + 39825.

It is an arithmetic number, because the mean of its divisors is an integer number (16943960).

Almost surely, 2^101431389 is an apocalyptic number.

It is an amenable number.

101431389 is a deficient number, since it is larger than the sum of its proper divisors (34120291).

101431389 is an equidigital number, since it uses as much as digits as its factorization.

101431389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77459.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 101431389 is about 10071.3151574161. The cubic root of 101431389 is about 466.3630396257.

The spelling of 101431389 in words is "one hundred one million, four hundred thirty-one thousand, three hundred eighty-nine".