11031681247 has 2 divisors, whose sum is σ = 11031681248. Its totient is φ = 11031681246.

The previous prime is 11031681179. The next prime is 11031681341. The reversal of 11031681247 is 74218613011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11031681247 - 2¹⁵ = 11031648479 is a prime.

It is a super-2 number, since 2×11031681247² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11031681547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515840623 + 5515840624.

It is an arithmetic number, because the mean of its divisors is an integer number (5515840624).

Almost surely, 2^11031681247 is an apocalyptic number.

11031681247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11031681247 is an equidigital number, since it uses as much as digits as its factorization.

11031681247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 11031681247 in words is "eleven billion, thirty-one million, six hundred eighty-one thousand, two hundred forty-seven".