101443431 has 16 divisors (see below), whose sum is σ = 138845664. Its totient is φ = 65854464.

The previous prime is 101443429. The next prime is 101443453. The reversal of 101443431 is 134344101.

It is not a de Polignac number, because 101443431 - 2¹ = 101443429 is a prime.

It is a super-2 number, since 2×101443431² = 20581539386103522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101443398 and 101443407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101443411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19455 + ... + 24111.

It is an arithmetic number, because the mean of its divisors is an integer number (8677854).

Almost surely, 2^101443431 is an apocalyptic number.

101443431 is a deficient number, since it is larger than the sum of its proper divisors (37402233).

101443431 is a wasteful number, since it uses less digits than its factorization.

101443431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 101443431 is about 10071.9129761928. The cubic root of 101443431 is about 466.3814945358.

Adding to 101443431 its reverse (134344101), we get a palindrome (235787532).

It can be divided in two parts, 10 and 1443431, that added together give a palindrome (1443441).

The spelling of 101443431 in words is "one hundred one million, four hundred forty-three thousand, four hundred thirty-one".