101245131 has 12 divisors (see below), whose sum is σ = 157492608. Its totient is φ = 62304624.

The previous prime is 101245099. The next prime is 101245139. The reversal of 101245131 is 131542101.

It is not a de Polignac number, because 101245131 - 2⁵ = 101245099 is a prime.

It is a super-2 number, since 2×101245131² = 20501153102414322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101245139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432555 + ... + 432788.

It is an arithmetic number, because the mean of its divisors is an integer number (13124384).

Almost surely, 2^101245131 is an apocalyptic number.

101245131 is a deficient number, since it is larger than the sum of its proper divisors (56247477).

101245131 is a wasteful number, since it uses less digits than its factorization.

101245131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865362 (or 865359 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 101245131 is about 10062.0639532851. The cubic root of 101245131 is about 466.0774046054.

Adding to 101245131 its reverse (131542101), we get a palindrome (232787232).

The spelling of 101245131 in words is "one hundred one million, two hundred forty-five thousand, one hundred thirty-one".