101520331 has 12 divisors (see below), whose sum is σ = 112039200. Its totient is φ = 91918640.

The previous prime is 101520313. The next prime is 101520373. The reversal of 101520331 is 133025101.

It is not a de Polignac number, because 101520331 - 2⁵ = 101520299 is a prime.

It is a super-2 number, since 2×101520331² = 20612755212699122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101520631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30990 + ... + 34108.

It is an arithmetic number, because the mean of its divisors is an integer number (9336600).

Almost surely, 2^101520331 is an apocalyptic number.

101520331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101520331 is a deficient number, since it is larger than the sum of its proper divisors (10518869).

101520331 is a wasteful number, since it uses less digits than its factorization.

101520331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410 (or 3399 counting only the distinct ones).

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

The square root of 101520331 is about 10075.7297998706. The cubic root of 101520331 is about 466.4993128373.

Adding to 101520331 its reverse (133025101), we get a palindrome (234545432).

The spelling of 101520331 in words is "one hundred one million, five hundred twenty thousand, three hundred thirty-one".