10111052531 has 4 divisors (see below), whose sum is σ = 10211162064. Its totient is φ = 10010943000.

The previous prime is 10111052527. The next prime is 10111052557. The reversal of 10111052531 is 13525011101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10111052531 - 2² = 10111052527 is a prime.

It is a super-2 number, since 2×10111052531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10111052591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50054615 + ... + 50054816.

It is an arithmetic number, because the mean of its divisors is an integer number (2552790516).

Almost surely, 2^10111052531 is an apocalyptic number.

10111052531 is a deficient number, since it is larger than the sum of its proper divisors (100109533).

10111052531 is a wasteful number, since it uses less digits than its factorization.

10111052531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100109532.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 10111052531 its reverse (13525011101), we get a palindrome (23636063632).

The spelling of 10111052531 in words is "ten billion, one hundred eleven million, fifty-two thousand, five hundred thirty-one".