5111311142031 has 4 divisors (see below), whose sum is σ = 6815081522712. Its totient is φ = 3407540761352.

The previous prime is 5111311142017. The next prime is 5111311142087. The reversal of 5111311142031 is 1302411131115.

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 5111311142031 - 2²³ = 5111302753423 is a prime.

It is a super-2 number, since 2×5111311142031² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5111311141992 and 5111311142010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111311142131) 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, 851885190336 + ... + 851885190341.

It is an arithmetic number, because the mean of its divisors is an integer number (1703770380678).

Almost surely, 2^{5111311142031} is an apocalyptic number.

5111311142031 is a deficient number, since it is larger than the sum of its proper divisors (1703770380681).

5111311142031 is a wasteful number, since it uses less digits than its factorization.

5111311142031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703770380680.

The product of its (nonzero) digits is 360, while the sum is 24.

Adding to 5111311142031 its reverse (1302411131115), we get a palindrome (6413722273146).

The spelling of 5111311142031 in words is "five trillion, one hundred eleven billion, three hundred eleven million, one hundred forty-two thousand, thirty-one".