2031011231 has 2 divisors, whose sum is σ = 2031011232. Its totient is φ = 2031011230.

The previous prime is 2031011209. The next prime is 2031011243. The reversal of 2031011231 is 1321101302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2031011231 is a prime.

It is a super-2 number, since 2×2031011231² = 8250013240896270722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031011431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015505615 + 1015505616.

It is an arithmetic number, because the mean of its divisors is an integer number (1015505616).

Almost surely, 2^2031011231 is an apocalyptic number.

2031011231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031011231 is an equidigital number, since it uses as much as digits as its factorization.

2031011231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2031011231 is about 45066.7419612290. The cubic root of 2031011231 is about 1266.3996300497.

Adding to 2031011231 its reverse (1321101302), we get a palindrome (3352112533).

The spelling of 2031011231 in words is "two billion, thirty-one million, eleven thousand, two hundred thirty-one".