101431143 has 32 divisors (see below), whose sum is σ = 164494080. Its totient is φ = 61261920.

The previous prime is 101431117. The next prime is 101431153. The reversal of 101431143 is 341134101.

It is not a de Polignac number, because 101431143 - 2⁹ = 101430631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101431103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155005 + ... + 155657.

It is an arithmetic number, because the mean of its divisors is an integer number (5140440).

Almost surely, 2^101431143 is an apocalyptic number.

101431143 is a deficient number, since it is larger than the sum of its proper divisors (63062937).

101431143 is a wasteful number, since it uses less digits than its factorization.

101431143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 101431143 is about 10071.3029445052. The cubic root of 101431143 is about 466.3626626043.

Adding to 101431143 its reverse (341134101), we get a palindrome (442565244).

The spelling of 101431143 in words is "one hundred one million, four hundred thirty-one thousand, one hundred forty-three".