101340431 has 4 divisors (see below), whose sum is σ = 101608200. Its totient is φ = 101072664.

The previous prime is 101340403. The next prime is 101340439. The reversal of 101340431 is 134043101.

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

It is a cyclic number.

It is not a de Polignac number, because 101340431 - 2⁶ = 101340367 is a prime.

It is a super-2 number, since 2×101340431² = 20539765910531522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101340439) 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, 133316 + ... + 134073.

It is an arithmetic number, because the mean of its divisors is an integer number (25402050).

Almost surely, 2^101340431 is an apocalyptic number.

101340431 is a deficient number, since it is larger than the sum of its proper divisors (267769).

101340431 is an equidigital number, since it uses as much as digits as its factorization.

101340431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267768.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 101340431 is about 10066.7984483648. The cubic root of 101340431 is about 466.2235951668.

Adding to 101340431 its reverse (134043101), we get a palindrome (235383532).

The spelling of 101340431 in words is "one hundred one million, three hundred forty thousand, four hundred thirty-one".