101431345 has 8 divisors (see below), whose sum is σ = 121991400. Its totient is φ = 80962560.

The previous prime is 101431313. The next prime is 101431397. The reversal of 101431345 is 543134101.

It can be written as a sum of positive squares in 4 ways, for example, as 790321 + 100641024 = 889^2 + 10032^2 .

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

It is not a de Polignac number, because 101431345 - 2⁵ = 101431313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20346 + ... + 24835.

It is an arithmetic number, because the mean of its divisors is an integer number (15248925).

Almost surely, 2^101431345 is an apocalyptic number.

It is an amenable number.

101431345 is a deficient number, since it is larger than the sum of its proper divisors (20560055).

101431345 is an equidigital number, since it uses as much as digits as its factorization.

101431345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45635.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 101431345 is about 10071.3129729941. The cubic root of 101431345 is about 466.3629721910.

Adding to 101431345 its reverse (543134101), we get a palindrome (644565446).

The spelling of 101431345 in words is "one hundred one million, four hundred thirty-one thousand, three hundred forty-five".