3125011031 has 4 divisors (see below), whose sum is σ = 3141202992. Its totient is φ = 3108819072.

The previous prime is 3125010991. The next prime is 3125011049. The reversal of 3125011031 is 1301105213.

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 3125011031 - 2²⁶ = 3057902167 is a prime.

It is a super-2 number, since 2×3125011031² = 19531387887743365922, which 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 (3125011831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8095691 + ... + 8096076.

It is an arithmetic number, because the mean of its divisors is an integer number (785300748).

Almost surely, 2^3125011031 is an apocalyptic number.

3125011031 is a deficient number, since it is larger than the sum of its proper divisors (16191961).

3125011031 is a wasteful number, since it uses less digits than its factorization.

3125011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16191960.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 3125011031 is about 55901.7981016711. The cubic root of 3125011031 is about 1462.0105893625.

Adding to 3125011031 its reverse (1301105213), we get a palindrome (4426116244).

The spelling of 3125011031 in words is "three billion, one hundred twenty-five million, eleven thousand, thirty-one".