247425534011111 has 4 divisors (see below), whose sum is σ = 247426514131800. Its totient is φ = 247424553890424.

The previous prime is 247425534011027. The next prime is 247425534011171. The reversal of 247425534011111 is 111110435524742.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 247425534011111 - 2²² = 247425529816807 is a prime.

It is a super-2 number, since 2×247425534011111² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247425534011171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489681581 + ... + 490186598.

It is an arithmetic number, because the mean of its divisors is an integer number (61856628532950).

Almost surely, 2^{247425534011111} is an apocalyptic number.

247425534011111 is a deficient number, since it is larger than the sum of its proper divisors (980120689).

247425534011111 is an equidigital number, since it uses as much as digits as its factorization.

247425534011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980120688.

The product of its (nonzero) digits is 134400, while the sum is 41.

Adding to 247425534011111 its reverse (111110435524742), we get a palindrome (358535969535853).

The spelling of 247425534011111 in words is "two hundred forty-seven trillion, four hundred twenty-five billion, five hundred thirty-four million, eleven thousand, one hundred eleven".