11148513947 has 2 divisors, whose sum is σ = 11148513948. Its totient is φ = 11148513946.

The previous prime is 11148513851. The next prime is 11148514019. The reversal of 11148513947 is 74931584111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11148513947 - 2¹² = 11148509851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11148513898 and 11148513907.

It is not a weakly prime, because it can be changed into another prime (11148513247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5574256973 + 5574256974.

It is an arithmetic number, because the mean of its divisors is an integer number (5574256974).

Almost surely, 2^11148513947 is an apocalyptic number.

11148513947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11148513947 is an equidigital number, since it uses as much as digits as its factorization.

11148513947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 44.

The spelling of 11148513947 in words is "eleven billion, one hundred forty-eight million, five hundred thirteen thousand, nine hundred forty-seven".