1240334131 has 2 divisors, whose sum is σ = 1240334132. Its totient is φ = 1240334130.

The previous prime is 1240334099. The next prime is 1240334153. The reversal of 1240334131 is 1314330421.

It is an a-pointer prime, because the next prime (1240334153) can be obtained adding 1240334131 to its sum of digits (22).

It is a strong prime.

It is an emirp because it is prime and its reverse (1314330421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1240334131 - 2⁵ = 1240334099 is a prime.

It is a super-2 number, since 2×1240334131² = 3076857513047050322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1240334191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620167065 + 620167066.

It is an arithmetic number, because the mean of its divisors is an integer number (620167066).

Almost surely, 2^1240334131 is an apocalyptic number.

1240334131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240334131 is an equidigital number, since it uses as much as digits as its factorization.

1240334131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1240334131 is about 35218.3777451489. The cubic root of 1240334131 is about 1074.4335594519.

Adding to 1240334131 its reverse (1314330421), we get a palindrome (2554664552).

It can be divided in two parts, 124033 and 4131, that added together give a square (128164 = 358²).

The spelling of 1240334131 in words is "one billion, two hundred forty million, three hundred thirty-four thousand, one hundred thirty-one".