248421497311 has 4 divisors (see below), whose sum is σ = 267530843272. Its totient is φ = 229312151352.

The previous prime is 248421497273. The next prime is 248421497333. The reversal of 248421497311 is 113794124842.

It is a happy number.

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 248421497311 - 2¹⁷ = 248421366239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248421447311) 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, 9554672961 + ... + 9554672986.

It is an arithmetic number, because the mean of its divisors is an integer number (66882710818).

Almost surely, 2^248421497311 is an apocalyptic number.

248421497311 is a deficient number, since it is larger than the sum of its proper divisors (19109345961).

248421497311 is a wasteful number, since it uses less digits than its factorization.

248421497311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19109345960.

The product of its digits is 387072, while the sum is 46.

The spelling of 248421497311 in words is "two hundred forty-eight billion, four hundred twenty-one million, four hundred ninety-seven thousand, three hundred eleven".