101023513 has 8 divisors (see below), whose sum is σ = 109771520. Its totient is φ = 92618640.

The previous prime is 101023499. The next prime is 101023543. The reversal of 101023513 is 315320101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101023513 is a prime.

It is a super-2 number, since 2×101023513² = 20411500357722338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101023543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85170 + ... + 86347.

It is an arithmetic number, because the mean of its divisors is an integer number (13721440).

Almost surely, 2^101023513 is an apocalyptic number.

It is an amenable number.

101023513 is a deficient number, since it is larger than the sum of its proper divisors (8748007).

101023513 is a wasteful number, since it uses less digits than its factorization.

101023513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171567.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 101023513 is about 10051.0453685176. The cubic root of 101023513 is about 465.7370866775.

Adding to 101023513 its reverse (315320101), we get a palindrome (416343614).

The spelling of 101023513 in words is "one hundred one million, twenty-three thousand, five hundred thirteen".