1223140401 has 48 divisors (see below), whose sum is σ = 2081289600. Its totient is φ = 691840800.

The previous prime is 1223140393. The next prime is 1223140403. The reversal of 1223140401 is 1040413221.

1223140401 is a `hidden beast` number, since 1 + 223 + 1 + 40 + 401 = 666.

It is not a de Polignac number, because 1223140401 - 2³ = 1223140393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223140403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 309826 + ... + 313748.

It is an arithmetic number, because the mean of its divisors is an integer number (43360200).

Almost surely, 2^1223140401 is an apocalyptic number.

It is an amenable number.

1223140401 is a deficient number, since it is larger than the sum of its proper divisors (858149199).

1223140401 is a wasteful number, since it uses less digits than its factorization.

1223140401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051 (or 4034 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1223140401 is about 34973.4242103915. The cubic root of 1223140401 is about 1069.4457784324.

Adding to 1223140401 its reverse (1040413221), we get a palindrome (2263553622).

The spelling of 1223140401 in words is "one billion, two hundred twenty-three million, one hundred forty thousand, four hundred one".