10001131031 has 4 divisors (see below), whose sum is σ = 10001444352. Its totient is φ = 10000817712.

The previous prime is 10001131027. The next prime is 10001131057. The reversal of 10001131031 is 13013110001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13013110001 = 239 ⋅54448159.

It is a cyclic number.

It is not a de Polignac number, because 10001131031 - 2² = 10001131027 is a prime.

It is a super-2 number, since 2×10001131031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001130031) 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, 102551 + ... + 174696.

It is an arithmetic number, because the mean of its divisors is an integer number (2500361088).

Almost surely, 2^10001131031 is an apocalyptic number.

10001131031 is a deficient number, since it is larger than the sum of its proper divisors (313321).

10001131031 is an equidigital number, since it uses as much as digits as its factorization.

10001131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313320.

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 10001131031 its reverse (13013110001), we get a palindrome (23014241032).

The spelling of 10001131031 in words is "ten billion, one million, one hundred thirty-one thousand, thirty-one".