1240054031 has 2 divisors, whose sum is σ = 1240054032. Its totient is φ = 1240054030.

The previous prime is 1240054027. The next prime is 1240054051. The reversal of 1240054031 is 1304500421.

It is an a-pointer prime, because the next prime (1240054051) can be obtained adding 1240054031 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240054031 - 2² = 1240054027 is a prime.

It is a super-2 number, since 2×1240054031² = 3075467999598697922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1240053994 and 1240054012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240054051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620027015 + 620027016.

It is an arithmetic number, because the mean of its divisors is an integer number (620027016).

Almost surely, 2^1240054031 is an apocalyptic number.

1240054031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240054031 is an equidigital number, since it uses as much as digits as its factorization.

1240054031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1240054031 is about 35214.4009036076. The cubic root of 1240054031 is about 1074.3526749307.

Adding to 1240054031 its reverse (1304500421), we get a palindrome (2544554452).

The spelling of 1240054031 in words is "one billion, two hundred forty million, fifty-four thousand, thirty-one".