1348823911 has 4 divisors (see below), whose sum is σ = 1428166512. Its totient is φ = 1269481312.

The previous prime is 1348823899. The next prime is 1348823923. The reversal of 1348823911 is 1193288431.

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

It is an interprime number because it is at equal distance from previous prime (1348823899) and next prime (1348823923).

It is a cyclic number.

It is not a de Polignac number, because 1348823911 - 2¹¹ = 1348821863 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 (1348823951) 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, 39671275 + ... + 39671308.

It is an arithmetic number, because the mean of its divisors is an integer number (357041628).

Almost surely, 2^1348823911 is an apocalyptic number.

1348823911 is a deficient number, since it is larger than the sum of its proper divisors (79342601).

1348823911 is an equidigital number, since it uses as much as digits as its factorization.

1348823911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79342600.

The product of its digits is 41472, while the sum is 40.

The square root of 1348823911 is about 36726.3381104079. The cubic root of 1348823911 is about 1104.8884119827. Note that the first 3 decimals are identical.

The spelling of 1348823911 in words is "one billion, three hundred forty-eight million, eight hundred twenty-three thousand, nine hundred eleven".