101020523 has 4 divisors (see below), whose sum is σ = 102528360. Its totient is φ = 99512688.

The previous prime is 101020501. The next prime is 101020541. The reversal of 101020523 is 325020101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 101020523 - 2¹⁸ = 100758379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101020498 and 101020507.

It is not an unprimeable number, because it can be changed into a prime (101028523) 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, 753818 + ... + 753951.

It is an arithmetic number, because the mean of its divisors is an integer number (25632090).

Almost surely, 2^101020523 is an apocalyptic number.

101020523 is a deficient number, since it is larger than the sum of its proper divisors (1507837).

101020523 is an equidigital number, since it uses as much as digits as its factorization.

101020523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507836.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 101020523 is about 10050.8966266697. The cubic root of 101020523 is about 465.7324918145.

Adding to 101020523 its reverse (325020101), we get a palindrome (426040624).

The spelling of 101020523 in words is "one hundred one million, twenty thousand, five hundred twenty-three".