1240041031 has 2 divisors, whose sum is σ = 1240041032. Its totient is φ = 1240041030.

The previous prime is 1240041029. The next prime is 1240041037. The reversal of 1240041031 is 1301400421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240041031 - 2¹ = 1240041029 is a prime.

It is a super-2 number, since 2×1240041031² = 3075403517127085922, which contains 22 as substring.

Together with 1240041029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1240040996 and 1240041014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240041037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620020515 + 620020516.

It is an arithmetic number, because the mean of its divisors is an integer number (620020516).

Almost surely, 2^1240041031 is an apocalyptic number.

1240041031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240041031 is an equidigital number, since it uses as much as digits as its factorization.

1240041031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1240041031 is about 35214.2163195491. The cubic root of 1240041031 is about 1074.3489206229.

Adding to 1240041031 its reverse (1301400421), we get a palindrome (2541441452).

The spelling of 1240041031 in words is "one billion, two hundred forty million, forty-one thousand, thirty-one".