101431403 has 4 divisors (see below), whose sum is σ = 105841488. Its totient is φ = 97021320.

The previous prime is 101431397. The next prime is 101431409. The reversal of 101431403 is 304134101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304134101 = 9337 ⋅32573.

It is an interprime number because it is at equal distance from previous prime (101431397) and next prime (101431409).

It is a cyclic number.

It is not a de Polignac number, because 101431403 - 2²⁰ = 100382827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101431409) 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, 2205008 + ... + 2205053.

It is an arithmetic number, because the mean of its divisors is an integer number (26460372).

Almost surely, 2^101431403 is an apocalyptic number.

101431403 is a deficient number, since it is larger than the sum of its proper divisors (4410085).

101431403 is an equidigital number, since it uses as much as digits as its factorization.

101431403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410084.

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

The square root of 101431403 is about 10071.3158524594. The cubic root of 101431403 is about 466.3630610822.

Adding to 101431403 its reverse (304134101), we get a palindrome (405565504).

The spelling of 101431403 in words is "one hundred one million, four hundred thirty-one thousand, four hundred three".