11520654343031 has 2 divisors, whose sum is σ = 11520654343032. Its totient is φ = 11520654343030.

The previous prime is 11520654342983. The next prime is 11520654343049. The reversal of 11520654343031 is 13034345602511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11520654343031 - 2¹⁰ = 11520654342007 is a prime.

It is a super-2 number, since 2×11520654343031² (a number of 27 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 (11520654343061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760327171515 + 5760327171516.

It is an arithmetic number, because the mean of its divisors is an integer number (5760327171516).

Almost surely, 2^{11520654343031} is an apocalyptic number.

11520654343031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11520654343031 is an equidigital number, since it uses as much as digits as its factorization.

11520654343031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 11520654343031 its reverse (13034345602511), we get a palindrome (24554999945542).

The spelling of 11520654343031 in words is "eleven trillion, five hundred twenty billion, six hundred fifty-four million, three hundred forty-three thousand, thirty-one".