101405431 has 8 divisors (see below), whose sum is σ = 105487200. Its totient is φ = 97362720.

The previous prime is 101405429. The next prime is 101405453. The reversal of 101405431 is 134504101.

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

It is a cyclic number.

It is not a de Polignac number, because 101405431 - 2¹ = 101405429 is a prime.

It is a super-2 number, since 2×101405431² = 20566122872591522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101405399 and 101405408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101405401) 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, 4411 + ... + 14908.

It is an arithmetic number, because the mean of its divisors is an integer number (13185900).

Almost surely, 2^101405431 is an apocalyptic number.

101405431 is a deficient number, since it is larger than the sum of its proper divisors (4081769).

101405431 is a wasteful number, since it uses less digits than its factorization.

101405431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19529.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 101405431 is about 10070.0263654074. The cubic root of 101405431 is about 466.3232528472.

Adding to 101405431 its reverse (134504101), we get a palindrome (235909532).

The spelling of 101405431 in words is "one hundred one million, four hundred five thousand, four hundred thirty-one".