5231994011 has 2 divisors, whose sum is σ = 5231994012. Its totient is φ = 5231994010.

The previous prime is 5231993999. The next prime is 5231994029. The reversal of 5231994011 is 1104991325.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5231994011 is a prime.

It is a super-2 number, since 2×5231994011² = 54747522662279736242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5231994211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2615997005 + 2615997006.

It is an arithmetic number, because the mean of its divisors is an integer number (2615997006).

Almost surely, 2^5231994011 is an apocalyptic number.

5231994011 is a deficient number, since it is larger than the sum of its proper divisors (1).

5231994011 is an equidigital number, since it uses as much as digits as its factorization.

5231994011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 5231994011 is about 72332.5238810316. The cubic root of 5231994011 is about 1736.0240847096.

The spelling of 5231994011 in words is "five billion, two hundred thirty-one million, nine hundred ninety-four thousand, eleven".