101231523 has 24 divisors (see below), whose sum is σ = 152395776. Its totient is φ = 64681200.

The previous prime is 101231491. The next prime is 101231527. The reversal of 101231523 is 325132101.

It is not a de Polignac number, because 101231523 - 2⁵ = 101231491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101231496 and 101231505.

It is not an unprimeable number, because it can be changed into a prime (101231527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28158 + ... + 31548.

It is an arithmetic number, because the mean of its divisors is an integer number (6349824).

Almost surely, 2^101231523 is an apocalyptic number.

101231523 is a deficient number, since it is larger than the sum of its proper divisors (51164253).

101231523 is a wasteful number, since it uses less digits than its factorization.

101231523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535 (or 3532 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 101231523 is about 10061.3877273466. The cubic root of 101231523 is about 466.0565223979.

Adding to 101231523 its reverse (325132101), we get a palindrome (426363624).

The spelling of 101231523 in words is "one hundred one million, two hundred thirty-one thousand, five hundred twenty-three".