1000031130031 has 4 divisors (see below), whose sum is σ = 1000036345672. Its totient is φ = 1000025914392.

The previous prime is 1000031129983. The next prime is 1000031130107. The reversal of 1000031130031 is 1300311300001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000031130031 is a prime.

It is a super-2 number, since 2×1000031130031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000031129993 and 1000031130020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000031130731) 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, 2308785 + ... + 2707498.

It is an arithmetic number, because the mean of its divisors is an integer number (250009086418).

Almost surely, 2^{1000031130031} is an apocalyptic number.

1000031130031 is a deficient number, since it is larger than the sum of its proper divisors (5215641).

1000031130031 is an equidigital number, since it uses as much as digits as its factorization.

1000031130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5215640.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 1000031130031 its reverse (1300311300001), we get a palindrome (2300342430032).

The spelling of 1000031130031 in words is "one trillion, thirty-one million, one hundred thirty thousand, thirty-one".