1240112216951 has 2 divisors, whose sum is σ = 1240112216952. Its totient is φ = 1240112216950.

The previous prime is 1240112216947. The next prime is 1240112216983. The reversal of 1240112216951 is 1596122110421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240112216951 - 2² = 1240112216947 is a prime.

It is a super-2 number, since 2×1240112216951² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240114216951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620056108475 + 620056108476.

It is an arithmetic number, because the mean of its divisors is an integer number (620056108476).

Almost surely, 2^{1240112216951} is an apocalyptic number.

1240112216951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240112216951 is an equidigital number, since it uses as much as digits as its factorization.

1240112216951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 1240112216951 in words is "one trillion, two hundred forty billion, one hundred twelve million, two hundred sixteen thousand, nine hundred fifty-one".