5231881311 has 8 divisors (see below), whose sum is σ = 7071401520. Its totient is φ = 3440140992.

The previous prime is 5231881307. The next prime is 5231881321. The reversal of 5231881311 is 1131881325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5231881311 - 2² = 5231881307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5231881321) 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 7 ways as a sum of consecutive naturals, for example, 11944716 + ... + 11945153.

It is an arithmetic number, because the mean of its divisors is an integer number (883925190).

Almost surely, 2^5231881311 is an apocalyptic number.

5231881311 is a deficient number, since it is larger than the sum of its proper divisors (1839520209).

5231881311 is a wasteful number, since it uses less digits than its factorization.

5231881311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23889945.

The product of its digits is 5760, while the sum is 33.

The square root of 5231881311 is about 72331.7448358603. The cubic root of 5231881311 is about 1736.0116196521.

The spelling of 5231881311 in words is "five billion, two hundred thirty-one million, eight hundred eighty-one thousand, three hundred eleven".